1255136364 has 24 divisors (see below), whose sum is σ = 3254057520. Its totient is φ = 418378752.

The previous prime is 1255136359. The next prime is 1255136383. The reversal of 1255136364 is 4636315521.

1255136364 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 13 + 636 + 4 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5810709 + ... + 5810924.

It is an arithmetic number, because the mean of its divisors is an integer number (135585730).

Almost surely, 2^1255136364 is an apocalyptic number.

It is an amenable number.

1255136364 is an abundant number, since it is smaller than the sum of its proper divisors (1998921156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255136364 is a wasteful number, since it uses less digits than its factorization.

1255136364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11621646 (or 11621638 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1255136364 is about 35427.9037483168. The cubic root of 1255136364 is about 1078.6907901192.

The spelling of 1255136364 in words is "one billion, two hundred fifty-five million, one hundred thirty-six thousand, three hundred sixty-four".