315047521226 has 4 divisors (see below), whose sum is σ = 472571281842. Its totient is φ = 157523760612.

The previous prime is 315047521219. The next prime is 315047521307. The reversal of 315047521226 is 622125740513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622125740513 = 19 ⋅32743460027.

It can be written as a sum of positive squares in only one way, i.e., 312088705201 + 2958816025 = 558649^2 + 54395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 315047521226.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78761880305 + ... + 78761880308.

Almost surely, 2^315047521226 is an apocalyptic number.

315047521226 is a deficient number, since it is larger than the sum of its proper divisors (157523760616).

315047521226 is a wasteful number, since it uses less digits than its factorization.

315047521226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157523760615.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 315047521226 in words is "three hundred fifteen billion, forty-seven million, five hundred twenty-one thousand, two hundred twenty-six".