23512045 has 4 divisors (see below), whose sum is σ = 28214460. Its totient is φ = 18809632.

The previous prime is 23512039. The next prime is 23512087. The reversal of 23512045 is 54021532.

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 7279204 + 16232841 = 2698^2 + 4029^2 .

It is a cyclic number.

It is not a de Polignac number, because 23512045 - 2¹³ = 23503853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351200 + ... + 2351209.

It is an arithmetic number, because the mean of its divisors is an integer number (7053615).

Almost surely, 2^23512045 is an apocalyptic number.

It is an amenable number.

23512045 is a deficient number, since it is larger than the sum of its proper divisors (4702415).

23512045 is an equidigital number, since it uses as much as digits as its factorization.

23512045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702414.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 23512045 is about 4848.9220451560. The cubic root of 23512045 is about 286.4816447747.

Adding to 23512045 its reverse (54021532), we get a palindrome (77533577).

The spelling of 23512045 in words is "twenty-three million, five hundred twelve thousand, forty-five".