252135454 has 16 divisors (see below), whose sum is σ = 392652720. Its totient is φ = 121282560.

The previous prime is 252135437. The next prime is 252135461. The reversal of 252135454 is 454531252.

It is a super-2 number, since 2×252135454² = 127144574327572232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8734 + ... + 24094.

It is an arithmetic number, because the mean of its divisors is an integer number (24540795).

Almost surely, 2^252135454 is an apocalyptic number.

252135454 is a deficient number, since it is larger than the sum of its proper divisors (140517266).

252135454 is a wasteful number, since it uses less digits than its factorization.

252135454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15675.

The product of its digits is 24000, while the sum is 31.

The square root of 252135454 is about 15878.7736932044. The cubic root of 252135454 is about 631.7491109460.

The spelling of 252135454 in words is "two hundred fifty-two million, one hundred thirty-five thousand, four hundred fifty-four".