12615018 has 16 divisors (see below), whose sum is σ = 27170976. Its totient is φ = 3881520.

The previous prime is 12614999. The next prime is 12615073. The reversal of 12615018 is 81051621.

12615018 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80788 + ... + 80943.

It is an arithmetic number, because the mean of its divisors is an integer number (1698186).

Almost surely, 2^12615018 is an apocalyptic number.

12615018 is an abundant number, since it is smaller than the sum of its proper divisors (14555958).

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

12615018 is a wasteful number, since it uses less digits than its factorization.

12615018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161749.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 12615018 is about 3551.7626609896. The cubic root of 12615018 is about 232.7890911977.

Adding to 12615018 its reverse (81051621), we get a palindrome (93666639).

The spelling of 12615018 in words is "twelve million, six hundred fifteen thousand, eighteen".