18122475 has 24 divisors (see below), whose sum is σ = 34243840. Its totient is φ = 8284320.

The previous prime is 18122453. The next prime is 18122491. The reversal of 18122475 is 57422181.

18122475 = 315² + 316² + ... + 440².

It is not a de Polignac number, because 18122475 - 2¹⁴ = 18106091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16735 + ... + 17784.

Almost surely, 2^18122475 is an apocalyptic number.

18122475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18122475 is a deficient number, since it is larger than the sum of its proper divisors (16121365).

18122475 is a wasteful number, since it uses less digits than its factorization.

18122475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34539 (or 34534 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 18122475 is about 4257.0500349420. The cubic root of 18122475 is about 262.6671950725.

The spelling of 18122475 in words is "eighteen million, one hundred twenty-two thousand, four hundred seventy-five".