23154198 has 32 divisors (see below), whose sum is σ = 49040640. Its totient is φ = 7267680.

The previous prime is 23154181. The next prime is 23154199. The reversal of 23154198 is 89145132.

It is a super-2 number, since 2×23154198² = 1072233770046408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23154199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21943 + ... + 22973.

It is an arithmetic number, because the mean of its divisors is an integer number (1532520).

Almost surely, 2^23154198 is an apocalyptic number.

23154198 is an abundant number, since it is smaller than the sum of its proper divisors (25886442).

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

23154198 is a wasteful number, since it uses less digits than its factorization.

23154198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252.

The product of its digits is 8640, while the sum is 33.

The square root of 23154198 is about 4811.8809212199. The cubic root of 23154198 is about 285.0208171929.

The spelling of 23154198 in words is "twenty-three million, one hundred fifty-four thousand, one hundred ninety-eight".