23131461 has 8 divisors (see below), whose sum is σ = 30905280. Its totient is φ = 15389312.

The previous prime is 23131457. The next prime is 23131469. The reversal of 23131461 is 16413132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23131461 - 2² = 23131457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131469) 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, 6156 + ... + 9173.

It is an arithmetic number, because the mean of its divisors is an integer number (3863160).

Almost surely, 2^23131461 is an apocalyptic number.

It is an amenable number.

23131461 is a deficient number, since it is larger than the sum of its proper divisors (7773819).

23131461 is a wasteful number, since it uses less digits than its factorization.

23131461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15835.

The product of its digits is 432, while the sum is 21.

The square root of 23131461 is about 4809.5177512927. The cubic root of 23131461 is about 284.9274915574.

Adding to 23131461 its reverse (16413132), we get a palindrome (39544593).

The spelling of 23131461 in words is "twenty-three million, one hundred thirty-one thousand, four hundred sixty-one".