315137077 has 2 divisors, whose sum is σ = 315137078. Its totient is φ = 315137076.

The previous prime is 315137071. The next prime is 315137089. The reversal of 315137077 is 770731513.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240591121 + 74545956 = 15511^2 + 8634^2 .

It is a cyclic number.

It is not a de Polignac number, because 315137077 - 2¹⁹ = 314612789 is a prime.

It is a super-2 number, since 2×315137077² = 198622754600207858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315137071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157568538 + 157568539.

It is an arithmetic number, because the mean of its divisors is an integer number (157568539).

Almost surely, 2^315137077 is an apocalyptic number.

It is an amenable number.

315137077 is a deficient number, since it is larger than the sum of its proper divisors (1).

315137077 is an equidigital number, since it uses as much as digits as its factorization.

315137077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15435, while the sum is 34.

The square root of 315137077 is about 17752.1006362627. The cubic root of 315137077 is about 680.5078940585.

The spelling of 315137077 in words is "three hundred fifteen million, one hundred thirty-seven thousand, seventy-seven".