23071149 has 36 divisors (see below), whose sum is σ = 36612576. Its totient is φ = 14515848.

The previous prime is 23071141. The next prime is 23071157. The reversal of 23071149 is 94117032.

It is an interprime number because it is at equal distance from previous prime (23071141) and next prime (23071157).

It is not a de Polignac number, because 23071149 - 2³ = 23071141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23071141) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 87592 + ... + 87854.

It is an arithmetic number, because the mean of its divisors is an integer number (1017016).

It is a vampire number, since it can be written as 3249 ⋅ 7101 (with its own digits).

Almost surely, 2^23071149 is an apocalyptic number.

It is an amenable number.

23071149 is a deficient number, since it is larger than the sum of its proper divisors (13541427).

23071149 is an equidigital number, since it uses as much as digits as its factorization.

23071149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 23071149 is about 4803.2435915743. The cubic root of 23071149 is about 284.6796400279.

It can be divided in two parts, 23071 and 149, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 23071149 in words is "twenty-three million, seventy-one thousand, one hundred forty-nine".