315622477 has 4 divisors (see below), whose sum is σ = 320067936. Its totient is φ = 311177020.

The previous prime is 315622453. The next prime is 315622481. The reversal of 315622477 is 774226513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315622477 - 2¹¹ = 315620429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315622277) 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, 2222623 + ... + 2222764.

It is an arithmetic number, because the mean of its divisors is an integer number (80016984).

Almost surely, 2^315622477 is an apocalyptic number.

It is an amenable number.

315622477 is a deficient number, since it is larger than the sum of its proper divisors (4445459).

315622477 is an equidigital number, since it uses as much as digits as its factorization.

315622477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445458.

The product of its digits is 70560, while the sum is 37.

The square root of 315622477 is about 17765.7669972338. The cubic root of 315622477 is about 680.8571062017.

The spelling of 315622477 in words is "three hundred fifteen million, six hundred twenty-two thousand, four hundred seventy-seven".