1252045413 has 48 divisors (see below), whose sum is σ = 1969531200. Its totient is φ = 763810560.

The previous prime is 1252045397. The next prime is 1252045477. The reversal of 1252045413 is 3145402521.

It is not a de Polignac number, because 1252045413 - 2⁴ = 1252045397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252045813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 749343 + ... + 751011.

It is an arithmetic number, because the mean of its divisors is an integer number (41031900).

Almost surely, 2^1252045413 is an apocalyptic number.

It is an amenable number.

1252045413 is a deficient number, since it is larger than the sum of its proper divisors (717485787).

1252045413 is a wasteful number, since it uses less digits than its factorization.

1252045413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1252045413 is about 35384.2537437205. The cubic root of 1252045413 is about 1077.8045859886.

Adding to 1252045413 its reverse (3145402521), we get a palindrome (4397447934).

The spelling of 1252045413 in words is "one billion, two hundred fifty-two million, forty-five thousand, four hundred thirteen".