23154855 has 16 divisors (see below), whose sum is σ = 37910400. Its totient is φ = 12061728.

The previous prime is 23154853. The next prime is 23154869. The reversal of 23154855 is 55845132.

It is not a de Polignac number, because 23154855 - 2¹ = 23154853 is a prime.

It is a super-2 number, since 2×23154855² = 1072294620142050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23154851) 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, 17305 + ... + 18594.

It is an arithmetic number, because the mean of its divisors is an integer number (2369400).

Almost surely, 2^23154855 is an apocalyptic number.

23154855 is a deficient number, since it is larger than the sum of its proper divisors (14755545).

23154855 is a wasteful number, since it uses less digits than its factorization.

23154855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35950.

The product of its digits is 24000, while the sum is 33.

The square root of 23154855 is about 4811.9491892579. The cubic root of 23154855 is about 285.0235129878.

Adding to 23154855 its reverse (55845132), we get a palindrome (78999987).

The spelling of 23154855 in words is "twenty-three million, one hundred fifty-four thousand, eight hundred fifty-five".