23158512 has 120 divisors (see below), whose sum is σ = 71089200. Its totient is φ = 6994944.

The previous prime is 23158489. The next prime is 23158517. The reversal of 23158512 is 21585132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23158517) 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 23 ways as a sum of consecutive naturals, for example, 166539 + ... + 166677.

It is an arithmetic number, because the mean of its divisors is an integer number (592410).

Almost surely, 2^23158512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23158512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35544600).

23158512 is an abundant number, since it is smaller than the sum of its proper divisors (47930688).

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

23158512 is a wasteful number, since it uses less digits than its factorization.

23158512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 246 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 23158512 is about 4812.3291657990. The cubic root of 23158512 is about 285.0385174165.

The spelling of 23158512 in words is "twenty-three million, one hundred fifty-eight thousand, five hundred twelve".