518249136 has 40 divisors (see below), whose sum is σ = 1353864240. Its totient is φ = 170807296.

The previous prime is 518249077. The next prime is 518249159. The reversal of 518249136 is 631942815.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 518249094 and 518249103.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56385 + ... + 64928.

It is an arithmetic number, because the mean of its divisors is an integer number (33846606).

Almost surely, 2^518249136 is an apocalyptic number.

It is an amenable number.

518249136 is an abundant number, since it is smaller than the sum of its proper divisors (835615104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518249136 is a wasteful number, since it uses less digits than its factorization.

518249136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121413 (or 121407 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 518249136 is about 22765.0858992449. The cubic root of 518249136 is about 803.2416055838.

The spelling of 518249136 in words is "five hundred eighteen million, two hundred forty-nine thousand, one hundred thirty-six".