1312024725 has 72 divisors (see below), whose sum is σ = 2714504832. Its totient is φ = 598694400.

The previous prime is 1312024709. The next prime is 1312024733. The reversal of 1312024725 is 5274202131.

1312024725 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1312024725 - 2⁴ = 1312024709 is a prime.

It is a super-2 number, since 2×1312024725² = 3442817758022651250, 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 71 ways as a sum of consecutive naturals, for example, 26484 + ... + 57666.

It is an arithmetic number, because the mean of its divisors is an integer number (37701456).

Almost surely, 2^1312024725 is an apocalyptic number.

1312024725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312024725 is an abundant number, since it is smaller than the sum of its proper divisors (1402480107).

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

1312024725 is a wasteful number, since it uses less digits than its factorization.

1312024725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31227 (or 31219 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1312024725 is about 36221.8818533770. The cubic root of 1312024725 is about 1094.7476118130.

Adding to 1312024725 its reverse (5274202131), we get a palindrome (6586226856).

The spelling of 1312024725 in words is "one billion, three hundred twelve million, twenty-four thousand, seven hundred twenty-five".