18196575 has 12 divisors (see below), whose sum is σ = 30085128. Its totient is φ = 9704800.

The previous prime is 18196571. The next prime is 18196583. The reversal of 18196575 is 57569181.

It is not a de Polignac number, because 18196575 - 2² = 18196571 is a prime.

It is a super-2 number, since 2×18196575² = 662230683461250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18196571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121236 + ... + 121385.

It is an arithmetic number, because the mean of its divisors is an integer number (2507094).

Almost surely, 2^18196575 is an apocalyptic number.

18196575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18196575 is a deficient number, since it is larger than the sum of its proper divisors (11888553).

18196575 is a wasteful number, since it uses less digits than its factorization.

18196575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242634 (or 242629 counting only the distinct ones).

The product of its digits is 75600, while the sum is 42.

The square root of 18196575 is about 4265.7443664617. The cubic root of 18196575 is about 263.0247100976.

The spelling of 18196575 in words is "eighteen million, one hundred ninety-six thousand, five hundred seventy-five".