23131460 has 24 divisors (see below), whose sum is σ = 52992576. Its totient is φ = 8411360.

The previous prime is 23131457. The next prime is 23131469. The reversal of 23131460 is 6413132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (23131469) 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 7 ways as a sum of consecutive naturals, for example, 52352 + ... + 52791.

It is an arithmetic number, because the mean of its divisors is an integer number (2208024).

Almost surely, 2^23131460 is an apocalyptic number.

23131460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23131460 is an abundant number, since it is smaller than the sum of its proper divisors (29861116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23131460 is a wasteful number, since it uses less digits than its factorization.

23131460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105163 (or 105161 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 23131460 is about 4809.5176473322. The cubic root of 23131460 is about 284.9274874514.

Adding to 23131460 its reverse (6413132), we get a palindrome (29544592).

It can be divided in two parts, 2313 and 1460, that added together give a palindrome (3773).

The spelling of 23131460 in words is "twenty-three million, one hundred thirty-one thousand, four hundred sixty".