513139982 has 16 divisors (see below), whose sum is σ = 803658240. Its totient is φ = 245267352.

The previous prime is 513139981. The next prime is 513140009. The reversal of 513139982 is 289931315.

It is a super-2 number, since 2×513139982² = 526625282253920648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513139981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139823 + ... + 143445.

It is an arithmetic number, because the mean of its divisors is an integer number (50228640).

Almost surely, 2^513139982 is an apocalyptic number.

513139982 is a deficient number, since it is larger than the sum of its proper divisors (290518258).

513139982 is a wasteful number, since it uses less digits than its factorization.

513139982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6727.

The product of its digits is 58320, while the sum is 41.

The square root of 513139982 is about 22652.5932731774. The cubic root of 513139982 is about 800.5933005094.

The spelling of 513139982 in words is "five hundred thirteen million, one hundred thirty-nine thousand, nine hundred eighty-two".