23186961 has 12 divisors (see below), whose sum is σ = 38276992. Its totient is φ = 13249656.

The previous prime is 23186959. The next prime is 23186983. The reversal of 23186961 is 16968132.

It is not a de Polignac number, because 23186961 - 2¹ = 23186959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23186561) 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 11 ways as a sum of consecutive naturals, for example, 183961 + ... + 184086.

Almost surely, 2^23186961 is an apocalyptic number.

23186961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23186961 is a deficient number, since it is larger than the sum of its proper divisors (15090031).

23186961 is a wasteful number, since it uses less digits than its factorization.

23186961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368060 (or 368057 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 23186961 is about 4815.2841037679. The cubic root of 23186961 is about 285.1551878734.

The spelling of 23186961 in words is "twenty-three million, one hundred eighty-six thousand, nine hundred sixty-one".