23271613 has 4 divisors (see below), whose sum is σ = 23284800. Its totient is φ = 23258428.

The previous prime is 23271587. The next prime is 23271629. The reversal of 23271613 is 31617232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23271613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23274613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3445 + ... + 7642.

It is an arithmetic number, because the mean of its divisors is an integer number (5821200).

Almost surely, 2^23271613 is an apocalyptic number.

It is an amenable number.

23271613 is a deficient number, since it is larger than the sum of its proper divisors (13187).

23271613 is a wasteful number, since it uses less digits than its factorization.

23271613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13186.

The product of its digits is 1512, while the sum is 25.

The square root of 23271613 is about 4824.0660235946. The cubic root of 23271613 is about 285.5017855516.

Adding to 23271613 its reverse (31617232), we get a palindrome (54888845).

The spelling of 23271613 in words is "twenty-three million, two hundred seventy-one thousand, six hundred thirteen".