1255154613 has 24 divisors (see below), whose sum is σ = 1712597568. Its totient is φ = 817666368.

The previous prime is 1255154603. The next prime is 1255154633. The reversal of 1255154613 is 3164515521.

It is not a de Polignac number, because 1255154613 - 2⁸ = 1255154357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255154603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2746281 + ... + 2746737.

It is an arithmetic number, because the mean of its divisors is an integer number (71358232).

Almost surely, 2^1255154613 is an apocalyptic number.

It is an amenable number.

1255154613 is a deficient number, since it is larger than the sum of its proper divisors (457442955).

1255154613 is an equidigital number, since it uses as much as digits as its factorization.

1255154613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841 (or 782 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 1255154613 is about 35428.1612986054. The cubic root of 1255154613 is about 1078.6960179530.

The spelling of 1255154613 in words is "one billion, two hundred fifty-five million, one hundred fifty-four thousand, six hundred thirteen".