315050402621 has 4 divisors (see below), whose sum is σ = 316276279932. Its totient is φ = 313824525312.

The previous prime is 315050402573. The next prime is 315050402627. The reversal of 315050402621 is 126204050513.

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 283887561721 + 31162840900 = 532811^2 + 176530^2 .

It is a cyclic number.

It is not a de Polignac number, because 315050402621 - 2³⁴ = 297870533437 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 (315050402627) 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, 612938270 + ... + 612938783.

It is an arithmetic number, because the mean of its divisors is an integer number (79069069983).

Almost surely, 2^315050402621 is an apocalyptic number.

It is an amenable number.

315050402621 is a deficient number, since it is larger than the sum of its proper divisors (1225877311).

315050402621 is a wasteful number, since it uses less digits than its factorization.

315050402621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225877310.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 315050402621 in words is "three hundred fifteen billion, fifty million, four hundred two thousand, six hundred twenty-one".