315535379 has 2 divisors, whose sum is σ = 315535380. Its totient is φ = 315535378.

The previous prime is 315535369. The next prime is 315535397. The reversal of 315535379 is 973535513.

Together with next prime (315535397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315535379 - 2⁸ = 315535123 is a prime.

It is not a weakly prime, because it can be changed into another prime (315535369) 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, 157767689 + 157767690.

It is an arithmetic number, because the mean of its divisors is an integer number (157767690).

Almost surely, 2^315535379 is an apocalyptic number.

315535379 is a deficient number, since it is larger than the sum of its proper divisors (1).

315535379 is an equidigital number, since it uses as much as digits as its factorization.

315535379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 212625, while the sum is 41.

The square root of 315535379 is about 17763.3155407429. The cubic root of 315535379 is about 680.7944715118.

The spelling of 315535379 in words is "three hundred fifteen million, five hundred thirty-five thousand, three hundred seventy-nine".