23117345 has 16 divisors (see below), whose sum is σ = 28403328. Its totient is φ = 18057600.

The previous prime is 23117329. The next prime is 23117389. The reversal of 23117345 is 54371132.

It is not a de Polignac number, because 23117345 - 2⁴ = 23117329 is a prime.

It is a Duffinian number.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 50357 + ... + 50813.

It is an arithmetic number, because the mean of its divisors is an integer number (1775208).

Almost surely, 2^23117345 is an apocalyptic number.

It is an amenable number.

23117345 is a deficient number, since it is larger than the sum of its proper divisors (5285983).

23117345 is a wasteful number, since it uses less digits than its factorization.

23117345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its digits is 2520, while the sum is 26.

The square root of 23117345 is about 4808.0500205385. The cubic root of 23117345 is about 284.8695206565.

Adding to 23117345 its reverse (54371132), we get a palindrome (77488477).

It can be divided in two parts, 231 and 17345, that added together give a cube (17576 = 26³).

The spelling of 23117345 in words is "twenty-three million, one hundred seventeen thousand, three hundred forty-five".