252167631 has 4 divisors (see below), whose sum is σ = 336223512. Its totient is φ = 168111752.

The previous prime is 252167627. The next prime is 252167659. The reversal of 252167631 is 136761252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252167631 - 2² = 252167627 is a prime.

It is a super-2 number, since 2×252167631² = 127177028248304322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252167592 and 252167601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252167611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42027936 + ... + 42027941.

It is an arithmetic number, because the mean of its divisors is an integer number (84055878).

Almost surely, 2^252167631 is an apocalyptic number.

252167631 is a deficient number, since it is larger than the sum of its proper divisors (84055881).

252167631 is an equidigital number, since it uses as much as digits as its factorization.

252167631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84055880.

The product of its digits is 15120, while the sum is 33.

The square root of 252167631 is about 15879.7868688468. The cubic root of 252167631 is about 631.7759839702.

The spelling of 252167631 in words is "two hundred fifty-two million, one hundred sixty-seven thousand, six hundred thirty-one".