23149136 has 20 divisors (see below), whose sum is σ = 45895872. Its totient is φ = 11305056.

The previous prime is 23149111. The next prime is 23149153. The reversal of 23149136 is 63194132.

It is a junction number, because it is equal to n+sod(n) for n = 23149099 and 23149108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16136 + ... + 17511.

Almost surely, 2^23149136 is an apocalyptic number.

It is an amenable number.

23149136 is a deficient number, since it is larger than the sum of its proper divisors (22746736).

23149136 is a wasteful number, since it uses less digits than its factorization.

23149136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33698 (or 33692 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 23149136 is about 4811.3549027275. The cubic root of 23149136 is about 285.0000451421. Note that the first 4 decimals are identical.

The spelling of 23149136 in words is "twenty-three million, one hundred forty-nine thousand, one hundred thirty-six".