23045815 has 8 divisors (see below), whose sum is σ = 29782368. Its totient is φ = 17018400.

The previous prime is 23045809. The next prime is 23045821. The reversal of 23045815 is 51854032.

It is an interprime number because it is at equal distance from previous prime (23045809) and next prime (23045821).

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

It is not a de Polignac number, because 23045815 - 2¹¹ = 23043767 is a prime.

It is a super-2 number, since 2×23045815² = 1062219178028450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177211 + ... + 177340.

It is an arithmetic number, because the mean of its divisors is an integer number (3722796).

Almost surely, 2^23045815 is an apocalyptic number.

23045815 is a deficient number, since it is larger than the sum of its proper divisors (6736553).

23045815 is a wasteful number, since it uses less digits than its factorization.

23045815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354569.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 23045815 is about 4800.6056909519. The cubic root of 23045815 is about 284.5754013902.

Adding to 23045815 its reverse (51854032), we get a palindrome (74899847).

The spelling of 23045815 in words is "twenty-three million, forty-five thousand, eight hundred fifteen".