18157954 has 16 divisors (see below), whose sum is σ = 28036800. Its totient is φ = 8814960.

The previous prime is 18157949. The next prime is 18157961. The reversal of 18157954 is 45975181.

It is a happy number.

It is a super-2 number, since 2×18157954² = 659422586932232, which contains 22 as substring.

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, 16584 + ... + 17644.

It is an arithmetic number, because the mean of its divisors is an integer number (1752300).

Almost surely, 2^18157954 is an apocalyptic number.

18157954 is a deficient number, since it is larger than the sum of its proper divisors (9878846).

18157954 is a wasteful number, since it uses less digits than its factorization.

18157954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305.

The product of its digits is 50400, while the sum is 40.

The square root of 18157954 is about 4261.2150849259. The cubic root of 18157954 is about 262.8384942380.

The spelling of 18157954 in words is "eighteen million, one hundred fifty-seven thousand, nine hundred fifty-four".