18612512 has 24 divisors (see below), whose sum is σ = 37005696. Its totient is φ = 9214272.

The previous prime is 18612511. The next prime is 18612523. The reversal of 18612512 is 21521681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18612511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473 + ... + 6119.

It is an arithmetic number, because the mean of its divisors is an integer number (1541904).

Almost surely, 2^18612512 is an apocalyptic number.

It is an amenable number.

18612512 is a deficient number, since it is larger than the sum of its proper divisors (18393184).

18612512 is a wasteful number, since it uses less digits than its factorization.

18612512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760 (or 5752 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 18612512 is about 4314.2220619713. Note that the first 3 decimals coincide. The cubic root of 18612512 is about 265.0137028633.

It can be divided in two parts, 186 and 12512, that multiplied together give a palindrome (2327232).

The spelling of 18612512 in words is "eighteen million, six hundred twelve thousand, five hundred twelve".