315620361 has 32 divisors (see below), whose sum is σ = 539412480. Its totient is φ = 178657488.

The previous prime is 315620359. The next prime is 315620411. The reversal of 315620361 is 163026513.

315620361 is a `hidden beast` number, since 3 + 1 + 5 + 620 + 36 + 1 = 666.

It is not a de Polignac number, because 315620361 - 2¹ = 315620359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (315620321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12420 + ... + 28026.

It is an arithmetic number, because the mean of its divisors is an integer number (16856640).

Almost surely, 2^315620361 is an apocalyptic number.

It is an amenable number.

315620361 is a deficient number, since it is larger than the sum of its proper divisors (223792119).

315620361 is a wasteful number, since it uses less digits than its factorization.

315620361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15730 (or 15724 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 315620361 is about 17765.7074443997. The cubic root of 315620361 is about 680.8555846615.

Adding to 315620361 its reverse (163026513), we get a palindrome (478646874).

The spelling of 315620361 in words is "three hundred fifteen million, six hundred twenty thousand, three hundred sixty-one".