253173166 has 16 divisors (see below), whose sum is σ = 390451824. Its totient is φ = 123030144.

The previous prime is 253173133. The next prime is 253173199. The reversal of 253173166 is 661371352.

It is an interprime number because it is at equal distance from previous prime (253173133) and next prime (253173199).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 113821 + ... + 116023.

It is an arithmetic number, because the mean of its divisors is an integer number (24403239).

Almost surely, 2^253173166 is an apocalyptic number.

253173166 is a deficient number, since it is larger than the sum of its proper divisors (137278658).

253173166 is a wasteful number, since it uses less digits than its factorization.

253173166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795.

The product of its digits is 22680, while the sum is 34.

The square root of 253173166 is about 15911.4162160381. The cubic root of 253173166 is about 632.6146196689.

The spelling of 253173166 in words is "two hundred fifty-three million, one hundred seventy-three thousand, one hundred sixty-six".