253388131 has 4 divisors (see below), whose sum is σ = 253458072. Its totient is φ = 253318192.

The previous prime is 253388119. The next prime is 253388197. The reversal of 253388131 is 131883352.

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

It is a cyclic number.

It is not a de Polignac number, because 253388131 - 2¹¹ = 253386083 is a prime.

It is a super-2 number, since 2×253388131² = 128411089863346322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253388101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29221 + ... + 36886.

It is an arithmetic number, because the mean of its divisors is an integer number (63364518).

Almost surely, 2^253388131 is an apocalyptic number.

253388131 is a deficient number, since it is larger than the sum of its proper divisors (69941).

253388131 is an equidigital number, since it uses as much as digits as its factorization.

253388131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69940.

The product of its digits is 17280, while the sum is 34.

The square root of 253388131 is about 15918.1698382697. The cubic root of 253388131 is about 632.7936164311.

The spelling of 253388131 in words is "two hundred fifty-three million, three hundred eighty-eight thousand, one hundred thirty-one".