23154912 has 72 divisors (see below), whose sum is σ = 71842680. Its totient is φ = 7015680.

The previous prime is 23154893. The next prime is 23154913. The reversal of 23154912 is 21945132.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×23154912² = 1072299899455488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23154913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 487 + ... + 6822.

It is an arithmetic number, because the mean of its divisors is an integer number (997815).

Almost surely, 2^23154912 is an apocalyptic number.

23154912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23154912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35921340).

23154912 is an abundant number, since it is smaller than the sum of its proper divisors (48687768).

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

23154912 is a wasteful number, since it uses less digits than its factorization.

23154912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336 (or 7325 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 23154912 is about 4811.9551120101. The cubic root of 23154912 is about 285.0237468671.

It can be divided in two parts, 2315 and 4912, that added together give a palindrome (7227).

The spelling of 23154912 in words is "twenty-three million, one hundred fifty-four thousand, nine hundred twelve".