252105166 has 4 divisors (see below), whose sum is σ = 378157752. Its totient is φ = 126052582.

The previous prime is 252105163. The next prime is 252105181. The reversal of 252105166 is 661501252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252105163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63026290 + ... + 63026293.

It is an arithmetic number, because the mean of its divisors is an integer number (94539438).

Almost surely, 2^252105166 is an apocalyptic number.

252105166 is a deficient number, since it is larger than the sum of its proper divisors (126052586).

252105166 is a wasteful number, since it uses less digits than its factorization.

252105166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126052585.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 252105166 is about 15877.8199385180. The cubic root of 252105166 is about 631.7238134548.

The spelling of 252105166 in words is "two hundred fifty-two million, one hundred five thousand, one hundred sixty-six".