315515492 has 6 divisors (see below), whose sum is σ = 552152118. Its totient is φ = 157757744.

The previous prime is 315515483. The next prime is 315515507. The reversal of 315515492 is 294515513.

It can be written as a sum of positive squares in only one way, i.e., 224580196 + 90935296 = 14986^2 + 9536^2 .

It is an unprimeable number.

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, 39439433 + ... + 39439440.

It is an arithmetic number, because the mean of its divisors is an integer number (92025353).

Almost surely, 2^315515492 is an apocalyptic number.

It is an amenable number.

315515492 is a deficient number, since it is larger than the sum of its proper divisors (236636626).

315515492 is a wasteful number, since it uses less digits than its factorization.

315515492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78878877 (or 78878875 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The square root of 315515492 is about 17762.7557546682. The cubic root of 315515492 is about 680.7801685789.

The spelling of 315515492 in words is "three hundred fifteen million, five hundred fifteen thousand, four hundred ninety-two".