253673137 has 4 divisors (see below), whose sum is σ = 254182000. Its totient is φ = 253164276.

The previous prime is 253673117. The next prime is 253673159. The reversal of 253673137 is 731376352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253673137 - 2¹⁹ = 253148849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253673096 and 253673105.

It is not an unprimeable number, because it can be changed into a prime (253673107) 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, 253683 + ... + 254680.

It is an arithmetic number, because the mean of its divisors is an integer number (63545500).

Almost surely, 2^253673137 is an apocalyptic number.

It is an amenable number.

253673137 is a deficient number, since it is larger than the sum of its proper divisors (508863).

253673137 is an equidigital number, since it uses as much as digits as its factorization.

253673137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508862.

The product of its digits is 79380, while the sum is 37.

The square root of 253673137 is about 15927.1195449774. The cubic root of 253673137 is about 633.0307788176.

The spelling of 253673137 in words is "two hundred fifty-three million, six hundred seventy-three thousand, one hundred thirty-seven".