253690031 has 8 divisors (see below), whose sum is σ = 306986400. Its totient is φ = 204657408.

The previous prime is 253690027. The next prime is 253690037. The reversal of 253690031 is 130096352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253690031 - 2² = 253690027 is a prime.

It is a super-2 number, since 2×253690031² = 128717263657561922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253689976 and 253690003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253690037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065806 + ... + 1066043.

It is an arithmetic number, because the mean of its divisors is an integer number (38373300).

Almost surely, 2^253690031 is an apocalyptic number.

253690031 is a deficient number, since it is larger than the sum of its proper divisors (53296369).

253690031 is a wasteful number, since it uses less digits than its factorization.

253690031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131873.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 253690031 is about 15927.6498894219. The cubic root of 253690031 is about 633.0448312642.

The spelling of 253690031 in words is "two hundred fifty-three million, six hundred ninety thousand, thirty-one".