315056398 has 4 divisors (see below), whose sum is σ = 472584600. Its totient is φ = 157528198.

The previous prime is 315056389. The next prime is 315056431. The reversal of 315056398 is 893650513.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 315056398.

It is a congruent number.

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, 78764098 + ... + 78764101.

It is an arithmetic number, because the mean of its divisors is an integer number (118146150).

Almost surely, 2^315056398 is an apocalyptic number.

315056398 is a deficient number, since it is larger than the sum of its proper divisors (157528202).

315056398 is a wasteful number, since it uses less digits than its factorization.

315056398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157528201.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 315056398 is about 17749.8281118438. The cubic root of 315056398 is about 680.4498162819.

The spelling of 315056398 in words is "three hundred fifteen million, fifty-six thousand, three hundred ninety-eight".