18070156 has 18 divisors (see below), whose sum is σ = 34243692. Its totient is φ = 8339760.

The previous prime is 18070153. The next prime is 18070177. The reversal of 18070156 is 65107081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18070153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12690 + ... + 14041.

Almost surely, 2^18070156 is an apocalyptic number.

It is an amenable number.

18070156 is a deficient number, since it is larger than the sum of its proper divisors (16173536).

18070156 is a wasteful number, since it uses less digits than its factorization.

18070156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26761 (or 26746 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 18070156 is about 4250.9006104589. The cubic root of 18070156 is about 262.4141808653.

The spelling of 18070156 in words is "eighteen million, seventy thousand, one hundred fifty-six".