815063013 has 32 divisors (see below), whose sum is σ = 1223147520. Its totient is φ = 536382000.

The previous prime is 815062961. The next prime is 815063027. The reversal of 815063013 is 310360518.

815063013 is a `hidden beast` number, since 8 + 15 + 0 + 630 + 13 = 666.

It is not a de Polignac number, because 815063013 - 2⁶ = 815062949 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815064013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 860206 + ... + 861152.

It is an arithmetic number, because the mean of its divisors is an integer number (38223360).

Almost surely, 2^815063013 is an apocalyptic number.

It is an amenable number.

815063013 is a deficient number, since it is larger than the sum of its proper divisors (408084507).

815063013 is a wasteful number, since it uses less digits than its factorization.

815063013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 815063013 is about 28549.3084504686. The cubic root of 815063013 is about 934.1079361923.

The spelling of 815063013 in words is "eight hundred fifteen million, sixty-three thousand, thirteen".