23055149 has 6 divisors (see below), whose sum is σ = 24965226. Its totient is φ = 21281520.

The previous prime is 23055139. The next prime is 23055157. The reversal of 23055149 is 94155032.

It can be written as a sum of positive squares in 3 ways, for example, as 1729225 + 21325924 = 1315^2 + 4618^2 .

It is not a de Polignac number, because 23055149 - 2⁸ = 23054893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23055119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68042 + ... + 68379.

It is an arithmetic number, because the mean of its divisors is an integer number (4160871).

Almost surely, 2^23055149 is an apocalyptic number.

It is an amenable number.

23055149 is a deficient number, since it is larger than the sum of its proper divisors (1910077).

23055149 is a wasteful number, since it uses less digits than its factorization.

23055149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136447 (or 136434 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 23055149 is about 4801.5777615280. The cubic root of 23055149 is about 284.6138157150.

The spelling of 23055149 in words is "twenty-three million, fifty-five thousand, one hundred forty-nine".