252151405 has 16 divisors (see below), whose sum is σ = 331236864. Its totient is φ = 182745280.

The previous prime is 252151399. The next prime is 252151483. The reversal of 252151405 is 504151252.

It is not a de Polignac number, because 252151405 - 2¹⁵ = 252118637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252151405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8292 + ... + 23938.

It is an arithmetic number, because the mean of its divisors is an integer number (20702304).

Almost surely, 2^252151405 is an apocalyptic number.

It is an amenable number.

252151405 is a deficient number, since it is larger than the sum of its proper divisors (79085459).

252151405 is a wasteful number, since it uses less digits than its factorization.

252151405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15956.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 252151405 is about 15879.2759595644. The cubic root of 252151405 is about 631.7624329090.

The spelling of 252151405 in words is "two hundred fifty-two million, one hundred fifty-one thousand, four hundred five".