313075513 has 2 divisors, whose sum is σ = 313075514. Its totient is φ = 313075512.

The previous prime is 313075493. The next prime is 313075531. The reversal of 313075513 is 315570313.

Together with next prime (313075531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207129664 + 105945849 = 14392^2 + 10293^2 .

It is a cyclic number.

It is not a de Polignac number, because 313075513 - 2²¹ = 310978361 is a prime.

It is not a weakly prime, because it can be changed into another prime (313075013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156537756 + 156537757.

It is an arithmetic number, because the mean of its divisors is an integer number (156537757).

Almost surely, 2^313075513 is an apocalyptic number.

It is an amenable number.

313075513 is a deficient number, since it is larger than the sum of its proper divisors (1).

313075513 is an equidigital number, since it uses as much as digits as its factorization.

313075513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725, while the sum is 28.

The square root of 313075513 is about 17693.9400078106. The cubic root of 313075513 is about 679.0207307120.

The spelling of 313075513 in words is "three hundred thirteen million, seventy-five thousand, five hundred thirteen".