23081582 has 4 divisors (see below), whose sum is σ = 34622376. Its totient is φ = 11540790.

The previous prime is 23081557. The next prime is 23081609. The reversal of 23081582 is 28518032.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5770394 + ... + 5770397.

It is an arithmetic number, because the mean of its divisors is an integer number (8655594).

Almost surely, 2^23081582 is an apocalyptic number.

23081582 is a deficient number, since it is larger than the sum of its proper divisors (11540794).

23081582 is a wasteful number, since it uses less digits than its factorization.

23081582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11540793.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 23081582 is about 4804.3295057687. The cubic root of 23081582 is about 284.7225452035.

The spelling of 23081582 in words is "twenty-three million, eighty-one thousand, five hundred eighty-two".