253173938 has 16 divisors (see below), whose sum is σ = 390652416. Its totient is φ = 122987760.

The previous prime is 253173937. The next prime is 253173941. The reversal of 253173938 is 839371352.

It is a junction number, because it is equal to n+sod(n) for n = 253173895 and 253173904.

It is not an unprimeable number, because it can be changed into a prime (253173937) by changing a digit.

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, 8720 + ... + 24132.

It is an arithmetic number, because the mean of its divisors is an integer number (24415776).

Almost surely, 2^253173938 is an apocalyptic number.

253173938 is a deficient number, since it is larger than the sum of its proper divisors (137478478).

253173938 is a wasteful number, since it uses less digits than its factorization.

253173938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649.

The product of its digits is 136080, while the sum is 41.

The square root of 253173938 is about 15911.4404753309. The cubic root of 253173938 is about 632.6152626781.

The spelling of 253173938 in words is "two hundred fifty-three million, one hundred seventy-three thousand, nine hundred thirty-eight".