252979413 has 4 divisors (see below), whose sum is σ = 337305888. Its totient is φ = 168652940.

The previous prime is 252979411. The next prime is 252979421. The reversal of 252979413 is 314979252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252979413 - 2¹ = 252979411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252979411) 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 3 ways as a sum of consecutive naturals, for example, 42163233 + ... + 42163238.

It is an arithmetic number, because the mean of its divisors is an integer number (84326472).

Almost surely, 2^252979413 is an apocalyptic number.

It is an amenable number.

252979413 is a deficient number, since it is larger than the sum of its proper divisors (84326475).

252979413 is an equidigital number, since it uses as much as digits as its factorization.

252979413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84326474.

The product of its digits is 136080, while the sum is 42.

The square root of 252979413 is about 15905.3265606211. The cubic root of 252979413 is about 632.4531988472.

The spelling of 252979413 in words is "two hundred fifty-two million, nine hundred seventy-nine thousand, four hundred thirteen".