315135644 has 6 divisors (see below), whose sum is σ = 551487384. Its totient is φ = 157567820.

The previous prime is 315135631. The next prime is 315135649. The reversal of 315135644 is 446531513.

It is a self number, because there is not a number n which added to its sum of digits gives 315135644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315135649) 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, 39391952 + ... + 39391959.

It is an arithmetic number, because the mean of its divisors is an integer number (91914564).

Almost surely, 2^315135644 is an apocalyptic number.

It is an amenable number.

315135644 is a deficient number, since it is larger than the sum of its proper divisors (236351740).

315135644 is a wasteful number, since it uses less digits than its factorization.

315135644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78783915 (or 78783913 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 315135644 is about 17752.0602747963. The cubic root of 315135644 is about 680.5068625822.

The spelling of 315135644 in words is "three hundred fifteen million, one hundred thirty-five thousand, six hundred forty-four".