23130785 has 4 divisors (see below), whose sum is σ = 27756948. Its totient is φ = 18504624.

The previous prime is 23130769. The next prime is 23130791. The reversal of 23130785 is 58703132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5683456 + 17447329 = 2384^2 + 4177^2 .

It is a cyclic number.

It is not a de Polignac number, because 23130785 - 2⁴ = 23130769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2313074 + ... + 2313083.

It is an arithmetic number, because the mean of its divisors is an integer number (6939237).

Almost surely, 2^23130785 is an apocalyptic number.

It is an amenable number.

23130785 is a deficient number, since it is larger than the sum of its proper divisors (4626163).

23130785 is an equidigital number, since it uses as much as digits as its factorization.

23130785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626162.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 23130785 is about 4809.4474734630. The cubic root of 23130785 is about 284.9247159313.

The spelling of 23130785 in words is "twenty-three million, one hundred thirty thousand, seven hundred eighty-five".