313515149 has 2 divisors, whose sum is σ = 313515150. Its totient is φ = 313515148.

The previous prime is 313515131. The next prime is 313515157. The reversal of 313515149 is 941515313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162052900 + 151462249 = 12730^2 + 12307^2 .

It is a cyclic number.

It is not a de Polignac number, because 313515149 - 2¹⁶ = 313449613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313515119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156757574 + 156757575.

It is an arithmetic number, because the mean of its divisors is an integer number (156757575).

Almost surely, 2^313515149 is an apocalyptic number.

It is an amenable number.

313515149 is a deficient number, since it is larger than the sum of its proper divisors (1).

313515149 is an equidigital number, since it uses as much as digits as its factorization.

313515149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 32.

The square root of 313515149 is about 17706.3589989585. The cubic root of 313515149 is about 679.3384201313.

The spelling of 313515149 in words is "three hundred thirteen million, five hundred fifteen thousand, one hundred forty-nine".