253137831 has 8 divisors (see below), whose sum is σ = 346639344. Its totient is φ = 164197440.

The previous prime is 253137821. The next prime is 253137853. The reversal of 253137831 is 138731352.

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

It is not a de Polignac number, because 253137831 - 2¹⁸ = 252875687 is a prime.

It is a super-2 number, since 2×253137831² = 128157522966769122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 253137792 and 253137801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253137821) 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, 1140150 + ... + 1140371.

It is an arithmetic number, because the mean of its divisors is an integer number (43329918).

Almost surely, 2^253137831 is an apocalyptic number.

253137831 is a deficient number, since it is larger than the sum of its proper divisors (93501513).

253137831 is a wasteful number, since it uses less digits than its factorization.

253137831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280561.

The product of its digits is 15120, while the sum is 33.

The square root of 253137831 is about 15910.3058110144. The cubic root of 253137831 is about 632.5851872743.

The spelling of 253137831 in words is "two hundred fifty-three million, one hundred thirty-seven thousand, eight hundred thirty-one".