253108313 has 4 divisors (see below), whose sum is σ = 253521828. Its totient is φ = 252694800.

The previous prime is 253108279. The next prime is 253108319. The reversal of 253108313 is 313801352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 77492809 + 175615504 = 8803^2 + 13252^2 .

It is a cyclic number.

It is not a de Polignac number, because 253108313 - 2⁸ = 253108057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253108319) 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, 205838 + ... + 207063.

It is an arithmetic number, because the mean of its divisors is an integer number (63380457).

Almost surely, 2^253108313 is an apocalyptic number.

It is an amenable number.

253108313 is a deficient number, since it is larger than the sum of its proper divisors (413515).

253108313 is an equidigital number, since it uses as much as digits as its factorization.

253108313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413514.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 253108313 is about 15909.3781462381. The cubic root of 253108313 is about 632.5605980675.

Adding to 253108313 its reverse (313801352), we get a palindrome (566909665).

The spelling of 253108313 in words is "two hundred fifty-three million, one hundred eight thousand, three hundred thirteen".