315463129 has 2 divisors, whose sum is σ = 315463130. Its totient is φ = 315463128.

The previous prime is 315463103. The next prime is 315463171. The reversal of 315463129 is 921364513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179694025 + 135769104 = 13405^2 + 11652^2 .

It is an emirp because it is prime and its reverse (921364513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315463129 - 2¹⁷ = 315332057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315463094 and 315463103.

It is not a weakly prime, because it can be changed into another prime (315463199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157731564 + 157731565.

It is an arithmetic number, because the mean of its divisors is an integer number (157731565).

Almost surely, 2^315463129 is an apocalyptic number.

It is an amenable number.

315463129 is a deficient number, since it is larger than the sum of its proper divisors (1).

315463129 is an equidigital number, since it uses as much as digits as its factorization.

315463129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 315463129 is about 17761.2817386584. The cubic root of 315463129 is about 680.7425057011.

The spelling of 315463129 in words is "three hundred fifteen million, four hundred sixty-three thousand, one hundred twenty-nine".