23182381 has 4 divisors (see below), whose sum is σ = 23195200. Its totient is φ = 23169564.

The previous prime is 23182363. The next prime is 23182417. The reversal of 23182381 is 18328132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23182381 - 2¹³ = 23174189 is a prime.

It is a super-2 number, since 2×23182381² = 1074845577658322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23182301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3141 + ... + 7498.

It is an arithmetic number, because the mean of its divisors is an integer number (5798800).

Almost surely, 2^23182381 is an apocalyptic number.

It is an amenable number.

23182381 is a deficient number, since it is larger than the sum of its proper divisors (12819).

23182381 is a wasteful number, since it uses less digits than its factorization.

23182381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12818.

The product of its digits is 2304, while the sum is 28.

The square root of 23182381 is about 4814.8085112494. The cubic root of 23182381 is about 285.1364115626.

The spelling of 23182381 in words is "twenty-three million, one hundred eighty-two thousand, three hundred eighty-one".