313548761 has 2 divisors, whose sum is σ = 313548762. Its totient is φ = 313548760.

The previous prime is 313548757. The next prime is 313548769. The reversal of 313548761 is 167845313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214446736 + 99102025 = 14644^2 + 9955^2 .

It is an emirp because it is prime and its reverse (167845313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313548761 - 2² = 313548757 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313548769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156774380 + 156774381.

It is an arithmetic number, because the mean of its divisors is an integer number (156774381).

Almost surely, 2^313548761 is an apocalyptic number.

It is an amenable number.

313548761 is a deficient number, since it is larger than the sum of its proper divisors (1).

313548761 is an equidigital number, since it uses as much as digits as its factorization.

313548761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 313548761 is about 17707.3081240487. The cubic root of 313548761 is about 679.3626965840.

The spelling of 313548761 in words is "three hundred thirteen million, five hundred forty-eight thousand, seven hundred sixty-one".