23561073 has 6 divisors (see below), whose sum is σ = 34032674. Its totient is φ = 15707376.

The previous prime is 23561071. The next prime is 23561077. The reversal of 23561073 is 37016532.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22496049 + 1065024 = 4743^2 + 1032^2 .

It is not a de Polignac number, because 23561073 - 2¹ = 23561071 is a prime.

It is a super-2 number, since 2×23561073² = 1110248321822658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23561071) 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 5 ways as a sum of consecutive naturals, for example, 1308940 + ... + 1308957.

Almost surely, 2^23561073 is an apocalyptic number.

It is an amenable number.

23561073 is a deficient number, since it is larger than the sum of its proper divisors (10471601).

23561073 is a wasteful number, since it uses less digits than its factorization.

23561073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617903 (or 2617900 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 23561073 is about 4853.9749690331. The cubic root of 23561073 is about 286.6806331456.

The spelling of 23561073 in words is "twenty-three million, five hundred sixty-one thousand, seventy-three".