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134144251 = 4147671039
BaseRepresentation
bin1111111111011…
…10000011111011
3100100102020022121
413333232003323
5233320104001
621151102111
73216131053
oct777560373
9310366277
10134144251
11697a261a
1238b11937
1321a39bc7
1413b5c563
15bb9b6a1
hex7fee0fb

134144251 has 16 divisors (see below), whose sum is σ = 142571520. Its totient is φ = 126054720.

The previous prime is 134144249. The next prime is 134144267. The reversal of 134144251 is 152441431.

It is a cyclic number.

It is not a de Polignac number, because 134144251 - 21 = 134144249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134144201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128590 + ... + 129628.

It is an arithmetic number, because the mean of its divisors is an integer number (8910720).

Almost surely, 2134144251 is an apocalyptic number.

134144251 is a deficient number, since it is larger than the sum of its proper divisors (8427269).

134144251 is a wasteful number, since it uses less digits than its factorization.

134144251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194.

The product of its digits is 1920, while the sum is 25.

The square root of 134144251 is about 11582.0659210695. The cubic root of 134144251 is about 511.9065521084.

Adding to 134144251 its reverse (152441431), we get a palindrome (286585682).

The spelling of 134144251 in words is "one hundred thirty-four million, one hundred forty-four thousand, two hundred fifty-one".

Divisors: 1 41 47 67 1039 1927 2747 3149 42599 48833 69613 129109 2002153 2854133 3271811 134144251