23012149 has 2 divisors, whose sum is σ = 23012150. Its totient is φ = 23012148.

The previous prime is 23012117. The next prime is 23012179. The reversal of 23012149 is 94121032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21762225 + 1249924 = 4665^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 23012149 - 2⁵ = 23012117 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23012179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506074 + 11506075.

It is an arithmetic number, because the mean of its divisors is an integer number (11506075).

Almost surely, 2^23012149 is an apocalyptic number.

It is an amenable number.

23012149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23012149 is an equidigital number, since it uses as much as digits as its factorization.

23012149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 23012149 is about 4797.0979769023. The cubic root of 23012149 is about 284.4367618379.

The spelling of 23012149 in words is "twenty-three million, twelve thousand, one hundred forty-nine".