513653139 has 12 divisors (see below), whose sum is σ = 748510776. Its totient is φ = 339404352.

The previous prime is 513653131. The next prime is 513653149. The reversal of 513653139 is 931356315.

513653139 is a `hidden beast` number, since 513 + 6 + 5 + 3 + 139 = 666.

It is not a de Polignac number, because 513653139 - 2³ = 513653131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513653131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251517 + ... + 253550.

It is an arithmetic number, because the mean of its divisors is an integer number (62375898).

Almost surely, 2^513653139 is an apocalyptic number.

513653139 is a deficient number, since it is larger than the sum of its proper divisors (234857637).

513653139 is a wasteful number, since it uses less digits than its factorization.

513653139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505186 (or 505183 counting only the distinct ones).

The product of its digits is 36450, while the sum is 36.

The square root of 513653139 is about 22663.9171150973. The cubic root of 513653139 is about 800.8600848820.

The spelling of 513653139 in words is "five hundred thirteen million, six hundred fifty-three thousand, one hundred thirty-nine".