315745922 has 4 divisors (see below), whose sum is σ = 473618886. Its totient is φ = 157872960.

The previous prime is 315745919. The next prime is 315745957. The reversal of 315745922 is 229547513.

315745922 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 307967401 + 7778521 = 17549^2 + 2789^2 .

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, 78936479 + ... + 78936482.

Almost surely, 2^315745922 is an apocalyptic number.

315745922 is a deficient number, since it is larger than the sum of its proper divisors (157872964).

315745922 is a wasteful number, since it uses less digits than its factorization.

315745922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157872963.

The product of its digits is 75600, while the sum is 38.

The square root of 315745922 is about 17769.2408954350. The cubic root of 315745922 is about 680.9458593339.

The spelling of 315745922 in words is "three hundred fifteen million, seven hundred forty-five thousand, nine hundred twenty-two".