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127885133 is a prime number
BaseRepresentation
bin1111001111101…
…01111101001101
322220122020102102
413213311331031
5230214311013
620405004445
73112001645
oct747657515
9286566372
10127885133
1166207aa2
12369b3725
1320657c9c
1412dad525
15b361d58
hex79f5f4d

127885133 has 2 divisors, whose sum is σ = 127885134. Its totient is φ = 127885132.

The previous prime is 127885103. The next prime is 127885141. The reversal of 127885133 is 331588721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115197289 + 12687844 = 10733^2 + 3562^2 .

It is a cyclic number.

It is not a de Polignac number, because 127885133 - 210 = 127884109 is a prime.

It is a super-3 number, since 3×1278851333 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127885103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63942566 + 63942567.

It is an arithmetic number, because the mean of its divisors is an integer number (63942567).

Almost surely, 2127885133 is an apocalyptic number.

It is an amenable number.

127885133 is a deficient number, since it is larger than the sum of its proper divisors (1).

127885133 is an equidigital number, since it uses as much as digits as its factorization.

127885133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 127885133 is about 11308.6309074087. The cubic root of 127885133 is about 503.8176213493.

The spelling of 127885133 in words is "one hundred twenty-seven million, eight hundred eighty-five thousand, one hundred thirty-three".