253175139 has 28 divisors (see below), whose sum is σ = 433824816. Its totient is φ = 144668592.

The previous prime is 253175113. The next prime is 253175159. The reversal of 253175139 is 931571352.

It is not a de Polignac number, because 253175139 - 2⁵ = 253175107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253175159) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 19704 + ... + 29909.

Almost surely, 2^253175139 is an apocalyptic number.

253175139 is a deficient number, since it is larger than the sum of its proper divisors (180649677).

253175139 is an frugal number, since it uses more digits than its factorization.

253175139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49638 (or 49623 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 253175139 is about 15911.4782154267. The cubic root of 253175139 is about 632.6162630045.

The spelling of 253175139 in words is "two hundred fifty-three million, one hundred seventy-five thousand, one hundred thirty-nine".