23099149 has 16 divisors (see below), whose sum is σ = 24494400. Its totient is φ = 21763456.

The previous prime is 23099143. The next prime is 23099161. The reversal of 23099149 is 94199032.

23099149 = 486² + 487² + ... + 568².

It is a cyclic number.

It is not a de Polignac number, because 23099149 - 2⁹ = 23098637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23099143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259497 + ... + 259585.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^23099149 is an apocalyptic number.

It is an amenable number.

23099149 is a deficient number, since it is larger than the sum of its proper divisors (1395251).

23099149 is an equidigital number, since it uses as much as digits as its factorization.

23099149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 23099149 is about 4806.1574048298. The cubic root of 23099149 is about 284.7947593839.

The spelling of 23099149 in words is "twenty-three million, ninety-nine thousand, one hundred forty-nine".