23158012 has 12 divisors (see below), whose sum is σ = 42910560. Its totient is φ = 10897856.

The previous prime is 23158007. The next prime is 23158019. The reversal of 23158012 is 21085132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23158019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170212 + ... + 170347.

It is an arithmetic number, because the mean of its divisors is an integer number (3575880).

Almost surely, 2^23158012 is an apocalyptic number.

It is an amenable number.

23158012 is a deficient number, since it is larger than the sum of its proper divisors (19752548).

23158012 is a wasteful number, since it uses less digits than its factorization.

23158012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340580 (or 340578 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 23158012 is about 4812.2772156226. The cubic root of 23158012 is about 285.0364660429.

The spelling of 23158012 in words is "twenty-three million, one hundred fifty-eight thousand, twelve".