23113645 has 8 divisors (see below), whose sum is σ = 28022904. Its totient is φ = 18299904.

The previous prime is 23113639. The next prime is 23113669. The reversal of 23113645 is 54631132.

It can be written as a sum of positive squares in 4 ways, for example, as 4008004 + 19105641 = 2002^2 + 4371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23113645 is a prime.

It is a super-3 number, since 3×23113645³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23344 + ... + 24313.

It is an arithmetic number, because the mean of its divisors is an integer number (3502863).

Almost surely, 2^23113645 is an apocalyptic number.

It is an amenable number.

23113645 is a deficient number, since it is larger than the sum of its proper divisors (4909259).

23113645 is an equidigital number, since it uses as much as digits as its factorization.

23113645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47759.

The product of its digits is 2160, while the sum is 25.

The square root of 23113645 is about 4807.6652337699. The cubic root of 23113645 is about 284.8543217735.

Adding to 23113645 its reverse (54631132), we get a palindrome (77744777).

The spelling of 23113645 in words is "twenty-three million, one hundred thirteen thousand, six hundred forty-five".