23166513 has 16 divisors (see below), whose sum is σ = 34758400. Its totient is φ = 15247440.

The previous prime is 23166503. The next prime is 23166541. The reversal of 23166513 is 31566132.

23166513 is a `hidden beast` number, since 2 + 3 + 1 + 6 + 651 + 3 = 666.

It is not a de Polignac number, because 23166513 - 2¹⁴ = 23150129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23166503) 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 15 ways as a sum of consecutive naturals, for example, 3298 + ... + 7563.

It is an arithmetic number, because the mean of its divisors is an integer number (2172400).

Almost surely, 2^23166513 is an apocalyptic number.

It is an amenable number.

23166513 is a deficient number, since it is larger than the sum of its proper divisors (11591887).

23166513 is a wasteful number, since it uses less digits than its factorization.

23166513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10949 (or 10943 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 23166513 is about 4813.1603962469. The cubic root of 23166513 is about 285.0713394820.

The spelling of 23166513 in words is "twenty-three million, one hundred sixty-six thousand, five hundred thirteen".