12538018 has 8 divisors (see below), whose sum is σ = 18841680. Its totient is φ = 6257460.

The previous prime is 12538003. The next prime is 12538033. The reversal of 12538018 is 81083521.

12538018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12538003) and next prime (12538033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4348 + ... + 6631.

It is an arithmetic number, because the mean of its divisors is an integer number (2355210).

Almost surely, 2^12538018 is an apocalyptic number.

12538018 is a deficient number, since it is larger than the sum of its proper divisors (6303662).

12538018 is a wasteful number, since it uses less digits than its factorization.

12538018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11552.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 12538018 is about 3540.9063811403. The cubic root of 12538018 is about 232.3144887799.

The spelling of 12538018 in words is "twelve million, five hundred thirty-eight thousand, eighteen".