23081542 has 16 divisors (see below), whose sum is σ = 39758400. Its totient is φ = 9939240.

The previous prime is 23081521. The next prime is 23081543. The reversal of 23081542 is 24518032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23081543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27192 + ... + 28027.

It is an arithmetic number, because the mean of its divisors is an integer number (2484900).

Almost surely, 2^23081542 is an apocalyptic number.

23081542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23081542 is a deficient number, since it is larger than the sum of its proper divisors (16676858).

23081542 is a wasteful number, since it uses less digits than its factorization.

23081542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55251.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 23081542 is about 4804.3253428551. The cubic root of 23081542 is about 284.7223807303.

Adding to 23081542 its reverse (24518032), we get a palindrome (47599574).

The spelling of 23081542 in words is "twenty-three million, eighty-one thousand, five hundred forty-two".