23140131 has 16 divisors (see below), whose sum is σ = 35328768. Its totient is φ = 13197600.

The previous prime is 23140123. The next prime is 23140163. The reversal of 23140131 is 13104132.

It is not a de Polignac number, because 23140131 - 2³ = 23140123 is a prime.

It is a super-2 number, since 2×23140131² = 1070931325394322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23140131.

It is not an unprimeable number, because it can be changed into a prime (23140531) 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 15 ways as a sum of consecutive naturals, for example, 19176 + ... + 20346.

It is an arithmetic number, because the mean of its divisors is an integer number (2208048).

Almost surely, 2^23140131 is an apocalyptic number.

23140131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23140131 is a deficient number, since it is larger than the sum of its proper divisors (12188637).

23140131 is a wasteful number, since it uses less digits than its factorization.

23140131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 23140131 is about 4810.4190046190. The cubic root of 23140131 is about 284.9630854004.

Adding to 23140131 its reverse (13104132), we get a palindrome (36244263).

The spelling of 23140131 in words is "twenty-three million, one hundred forty thousand, one hundred thirty-one".