23161963 has 8 divisors (see below), whose sum is σ = 25950960. Its totient is φ = 20486880.

The previous prime is 23161961. The next prime is 23162003. The reversal of 23161963 is 36916132.

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 23161963 - 2¹ = 23161961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23161961) 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 7 ways as a sum of consecutive naturals, for example, 28048 + ... + 28861.

It is an arithmetic number, because the mean of its divisors is an integer number (3243870).

Almost surely, 2^23161963 is an apocalyptic number.

23161963 is a deficient number, since it is larger than the sum of its proper divisors (2788997).

23161963 is a wasteful number, since it uses less digits than its factorization.

23161963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56957.

The product of its digits is 5832, while the sum is 31.

The square root of 23161963 is about 4812.6877106249. The cubic root of 23161963 is about 285.0526751924.

The spelling of 23161963 in words is "twenty-three million, one hundred sixty-one thousand, nine hundred sixty-three".