18123354 has 12 divisors (see below), whose sum is σ = 39267306. Its totient is φ = 6041112.

The previous prime is 18123331. The next prime is 18123361. The reversal of 18123354 is 45332181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17264025 + 859329 = 4155^2 + 927^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503409 + ... + 503444.

Almost surely, 2^18123354 is an apocalyptic number.

18123354 is an abundant number, since it is smaller than the sum of its proper divisors (21143952).

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

18123354 is a wasteful number, since it uses less digits than its factorization.

18123354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006861 (or 1006858 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 18123354 is about 4257.1532741963. The cubic root of 18123354 is about 262.6714417466.

The spelling of 18123354 in words is "eighteen million, one hundred twenty-three thousand, three hundred fifty-four".