315079129 has 2 divisors, whose sum is σ = 315079130. Its totient is φ = 315079128.

The previous prime is 315079081. The next prime is 315079199. The reversal of 315079129 is 921970513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251159104 + 63920025 = 15848^2 + 7995^2 .

It is an emirp because it is prime and its reverse (921970513) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315079129 is a prime.

It is not a weakly prime, because it can be changed into another prime (315079199) 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, 157539564 + 157539565.

It is an arithmetic number, because the mean of its divisors is an integer number (157539565).

Almost surely, 2^315079129 is an apocalyptic number.

It is an amenable number.

315079129 is a deficient number, since it is larger than the sum of its proper divisors (1).

315079129 is an equidigital number, since it uses as much as digits as its factorization.

315079129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 315079129 is about 17750.4684163545. The cubic root of 315079129 is about 680.4661804767.

The spelling of 315079129 in words is "three hundred fifteen million, seventy-nine thousand, one hundred twenty-nine".