1252321413 has 16 divisors (see below), whose sum is σ = 1974103680. Its totient is φ = 690935616.

The previous prime is 1252321409. The next prime is 1252321423. The reversal of 1252321413 is 3141232521.

It is not a de Polignac number, because 1252321413 - 2² = 1252321409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252321423) 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 15 ways as a sum of consecutive naturals, for example, 1027570 + ... + 1028787.

It is an arithmetic number, because the mean of its divisors is an integer number (123381480).

Almost surely, 2^1252321413 is an apocalyptic number.

It is an amenable number.

1252321413 is a deficient number, since it is larger than the sum of its proper divisors (721782267).

1252321413 is a wasteful number, since it uses less digits than its factorization.

1252321413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056396.

The product of its digits is 1440, while the sum is 24.

The square root of 1252321413 is about 35388.1535686732. The cubic root of 1252321413 is about 1077.8837769953.

Adding to 1252321413 its reverse (3141232521), we get a palindrome (4393553934).

The spelling of 1252321413 in words is "one billion, two hundred fifty-two million, three hundred twenty-one thousand, four hundred thirteen".