253686313 has 2 divisors, whose sum is σ = 253686314. Its totient is φ = 253686312.

The previous prime is 253686281. The next prime is 253686379. The reversal of 253686313 is 313686352.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143688169 + 109998144 = 11987^2 + 10488^2 .

It is a cyclic number.

It is not a de Polignac number, because 253686313 - 2⁵ = 253686281 is a prime.

It is not a weakly prime, because it can be changed into another prime (253686383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126843156 + 126843157.

It is an arithmetic number, because the mean of its divisors is an integer number (126843157).

Almost surely, 2^253686313 is an apocalyptic number.

It is an amenable number.

253686313 is a deficient number, since it is larger than the sum of its proper divisors (1).

253686313 is an equidigital number, since it uses as much as digits as its factorization.

253686313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 253686313 is about 15927.5331737215. The cubic root of 253686313 is about 633.0417386815.

The spelling of 253686313 in words is "two hundred fifty-three million, six hundred eighty-six thousand, three hundred thirteen".