1252368513 has 32 divisors (see below), whose sum is σ = 2040816000. Its totient is φ = 758989440.

The previous prime is 1252368511. The next prime is 1252368517. The reversal of 1252368513 is 3158632521.

It is not a de Polignac number, because 1252368513 - 2¹ = 1252368511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252368511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18513 + ... + 53361.

It is an arithmetic number, because the mean of its divisors is an integer number (63775500).

Almost surely, 2^1252368513 is an apocalyptic number.

It is an amenable number.

1252368513 is a deficient number, since it is larger than the sum of its proper divisors (788447487).

1252368513 is an equidigital number, since it uses as much as digits as its factorization.

1252368513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34891 (or 34863 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 1252368513 is about 35388.8190393520. The cubic root of 1252368513 is about 1077.8972899505.

The spelling of 1252368513 in words is "one billion, two hundred fifty-two million, three hundred sixty-eight thousand, five hundred thirteen".