315564434 has 4 divisors (see below), whose sum is σ = 473346654. Its totient is φ = 157782216.

The previous prime is 315564433. The next prime is 315564461. The reversal of 315564434 is 434465513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434465513 = 379 ⋅1146347.

It can be written as a sum of positive squares in only one way, i.e., 310288225 + 5276209 = 17615^2 + 2297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 315564394 and 315564403.

It is not an unprimeable number, because it can be changed into a prime (315564433) by changing a digit.

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, 78891107 + ... + 78891110.

Almost surely, 2^315564434 is an apocalyptic number.

315564434 is a deficient number, since it is larger than the sum of its proper divisors (157782220).

315564434 is a wasteful number, since it uses less digits than its factorization.

315564434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157782219.

The product of its digits is 86400, while the sum is 35.

The square root of 315564434 is about 17764.1333591031. The cubic root of 315564434 is about 680.8153670834.

The spelling of 315564434 in words is "three hundred fifteen million, five hundred sixty-four thousand, four hundred thirty-four".