23281093 has 16 divisors (see below), whose sum is σ = 26634240. Its totient is φ = 20156400.

The previous prime is 23281091. The next prime is 23281117. The reversal of 23281093 is 39018232.

It is not a de Polignac number, because 23281093 - 2¹ = 23281091 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 (23281091) 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, 22338 + ... + 23356.

It is an arithmetic number, because the mean of its divisors is an integer number (1664640).

Almost surely, 2^23281093 is an apocalyptic number.

It is an amenable number.

23281093 is a deficient number, since it is larger than the sum of its proper divisors (3353147).

23281093 is a wasteful number, since it uses less digits than its factorization.

23281093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 23281093 is about 4825.0484971656. The cubic root of 23281093 is about 285.5405479341.

It can be divided in two parts, 232810 and 93, that added together give a triangular number (232903 = T₆₈₂).

The spelling of 23281093 in words is "twenty-three million, two hundred eighty-one thousand, ninety-three".