23213345 has 8 divisors (see below), whose sum is σ = 29322240. Its totient is φ = 17593200.

The previous prime is 23213341. The next prime is 23213363. The reversal of 23213345 is 54331232.

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

It is not a de Polignac number, because 23213345 - 2² = 23213341 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23213345.

It is not an unprimeable number, because it can be changed into a prime (23213341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122081 + ... + 122270.

It is an arithmetic number, because the mean of its divisors is an integer number (3665280).

Almost surely, 2^23213345 is an apocalyptic number.

It is an amenable number.

23213345 is a deficient number, since it is larger than the sum of its proper divisors (6108895).

23213345 is a wasteful number, since it uses less digits than its factorization.

23213345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244375.

The product of its digits is 2160, while the sum is 23.

The square root of 23213345 is about 4818.0229347731. The cubic root of 23213345 is about 285.2633044230.

Adding to 23213345 its reverse (54331232), we get a palindrome (77544577).

The spelling of 23213345 in words is "twenty-three million, two hundred thirteen thousand, three hundred forty-five".