23091152 has 30 divisors (see below), whose sum is σ = 52045218. Its totient is φ = 9895872.

The previous prime is 23091143. The next prime is 23091157. The reversal of 23091152 is 25119032.

It can be written as a sum of positive squares in only one way, i.e., 19571776 + 3519376 = 4424^2 + 1876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23091157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13943 + ... + 15510.

Almost surely, 2^23091152 is an apocalyptic number.

It is an amenable number.

23091152 is an abundant number, since it is smaller than the sum of its proper divisors (28954066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23091152 is a wasteful number, since it uses less digits than its factorization.

23091152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29475 (or 29462 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 23091152 is about 4805.3253792017. The cubic root of 23091152 is about 284.7618899686.

The spelling of 23091152 in words is "twenty-three million, ninety-one thousand, one hundred fifty-two".