23160661 has 4 divisors (see below), whose sum is σ = 23185024. Its totient is φ = 23136300.

The previous prime is 23160619. The next prime is 23160673. The reversal of 23160661 is 16606132.

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-23160661 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 (23160611) 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, 10695 + ... + 12676.

It is an arithmetic number, because the mean of its divisors is an integer number (5796256).

Almost surely, 2^23160661 is an apocalyptic number.

It is an amenable number.

23160661 is a deficient number, since it is larger than the sum of its proper divisors (24363).

23160661 is an equidigital number, since it uses as much as digits as its factorization.

23160661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24362.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 23160661 is about 4812.5524412727. The cubic root of 23160661 is about 285.0473338844.

Adding to 23160661 its reverse (16606132), we get a palindrome (39766793).

The spelling of 23160661 in words is "twenty-three million, one hundred sixty thousand, six hundred sixty-one".