315622457 has 4 divisors (see below), whose sum is σ = 326506020. Its totient is φ = 304738896.

The previous prime is 315622453. The next prime is 315622481. The reversal of 315622457 is 754226513.

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

It can be written as a sum of positive squares in 2 ways, for example, as 175933696 + 139688761 = 13264^2 + 11819^2 .

It is a cyclic number.

It is not a de Polignac number, because 315622457 - 2² = 315622453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315622453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5441738 + ... + 5441795.

It is an arithmetic number, because the mean of its divisors is an integer number (81626505).

Almost surely, 2^315622457 is an apocalyptic number.

It is an amenable number.

315622457 is a deficient number, since it is larger than the sum of its proper divisors (10883563).

315622457 is a wasteful number, since it uses less digits than its factorization.

315622457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10883562.

The product of its digits is 50400, while the sum is 35.

The square root of 315622457 is about 17765.7664343535. The cubic root of 315622457 is about 680.8570918205.

The spelling of 315622457 in words is "three hundred fifteen million, six hundred twenty-two thousand, four hundred fifty-seven".