315535501 has 2 divisors, whose sum is σ = 315535502. Its totient is φ = 315535500.

The previous prime is 315535469. The next prime is 315535513. The reversal of 315535501 is 105535513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230250276 + 85285225 = 15174^2 + 9235^2 .

It is an emirp because it is prime and its reverse (105535513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315535501 - 2⁵ = 315535469 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315535501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315535541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157767750 + 157767751.

It is an arithmetic number, because the mean of its divisors is an integer number (157767751).

Almost surely, 2^315535501 is an apocalyptic number.

It is an amenable number.

315535501 is a deficient number, since it is larger than the sum of its proper divisors (1).

315535501 is an equidigital number, since it uses as much as digits as its factorization.

315535501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5625, while the sum is 28.

The square root of 315535501 is about 17763.3189747862. The cubic root of 315535501 is about 680.7945592536.

The spelling of 315535501 in words is "three hundred fifteen million, five hundred thirty-five thousand, five hundred one".