18077512 has 16 divisors (see below), whose sum is σ = 35679600. Its totient is φ = 8562960.

The previous prime is 18077509. The next prime is 18077513. The reversal of 18077512 is 21577081.

It is a happy number.

It is a super-2 number, since 2×18077512² = 653592880220288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18077513) 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, 59314 + ... + 59617.

It is an arithmetic number, because the mean of its divisors is an integer number (2229975).

Almost surely, 2^18077512 is an apocalyptic number.

It is an amenable number.

18077512 is a deficient number, since it is larger than the sum of its proper divisors (17602088).

18077512 is a wasteful number, since it uses less digits than its factorization.

18077512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118956 (or 118952 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 18077512 is about 4251.7657508381. The cubic root of 18077512 is about 262.4497838939.

The spelling of 18077512 in words is "eighteen million, seventy-seven thousand, five hundred twelve".