252163907 has 8 divisors (see below), whose sum is σ = 269361936. Its totient is φ = 235228672.

The previous prime is 252163897. The next prime is 252163909. The reversal of 252163907 is 709361252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252163907 - 2²⁰ = 251115331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252163909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63713 + ... + 67554.

It is an arithmetic number, because the mean of its divisors is an integer number (33670242).

Almost surely, 2^252163907 is an apocalyptic number.

252163907 is a deficient number, since it is larger than the sum of its proper divisors (17198029).

252163907 is a wasteful number, since it uses less digits than its factorization.

252163907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131397.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 252163907 is about 15879.6696124321. The cubic root of 252163907 is about 631.7728739420.

The spelling of 252163907 in words is "two hundred fifty-two million, one hundred sixty-three thousand, nine hundred seven".