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137253231128887 = 347439638997167
BaseRepresentation
bin11111001101010011000010…
…000101011111000100110111
3122222222021120200000110211121
4133031103002011133010313
5120442224104132111022
61203525133001244411
740624135006101406
oct3715230205370467
9588867520013747
10137253231128887
113a80784a873775
1213488719493707
135b77c024b9c83
1425c713ddb563d
1510d04115ad2c7
hex7cd4c215f137

137253231128887 has 8 divisors (see below), whose sum is σ = 137651919895296. Its totient is φ = 136854560445432.

The previous prime is 137253231128863. The next prime is 137253231128911. The reversal of 137253231128887 is 788821132352731.

It is an interprime number because it is at equal distance from previous prime (137253231128863) and next prime (137253231128911).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-137253231128887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137253231128837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10756578 + ... + 19753744.

It is an arithmetic number, because the mean of its divisors is an integer number (17206489986912).

Almost surely, 2137253231128887 is an apocalyptic number.

137253231128887 is a deficient number, since it is larger than the sum of its proper divisors (398688766409).

137253231128887 is an equidigital number, since it uses as much as digits as its factorization.

137253231128887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9041477.

The product of its digits is 27095040, while the sum is 61.

The spelling of 137253231128887 in words is "one hundred thirty-seven trillion, two hundred fifty-three billion, two hundred thirty-one million, one hundred twenty-eight thousand, eight hundred eighty-seven".

Divisors: 1 347 43963 8997167 15255161 3122016949 395542452821 137253231128887