64131255 has 12 divisors (see below), whose sum is σ = 111160920. Its totient is φ = 34203312.

The previous prime is 64131233. The next prime is 64131269. The reversal of 64131255 is 55213146.

64131255 is a `hidden beast` number, since 641 + 3 + 12 + 5 + 5 = 666.

It is not a de Polignac number, because 64131255 - 2⁹ = 64130743 is a prime.

It is a super-2 number, since 2×64131255² = 8225635735750050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 712525 + ... + 712614.

It is an arithmetic number, because the mean of its divisors is an integer number (9263410).

Almost surely, 2^64131255 is an apocalyptic number.

64131255 is a deficient number, since it is larger than the sum of its proper divisors (47029665).

64131255 is a wasteful number, since it uses less digits than its factorization.

64131255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425150 (or 1425147 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 64131255 is about 8008.1992357833. The cubic root of 64131255 is about 400.2732611950.

The spelling of 64131255 in words is "sixty-four million, one hundred thirty-one thousand, two hundred fifty-five".