23261345 has 8 divisors (see below), whose sum is σ = 28668264. Its totient is φ = 18105984.

The previous prime is 23261341. The next prime is 23261347. The reversal of 23261345 is 54316232.

It can be written as a sum of positive squares in 4 ways, for example, as 8392609 + 14868736 = 2897^2 + 3856^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23261345 - 2² = 23261341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23261341) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 62684 + ... + 63053.

It is an arithmetic number, because the mean of its divisors is an integer number (3583533).

Almost surely, 2^23261345 is an apocalyptic number.

It is an amenable number.

23261345 is a deficient number, since it is larger than the sum of its proper divisors (5406919).

23261345 is a wasteful number, since it uses less digits than its factorization.

23261345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125779.

The product of its digits is 4320, while the sum is 26.

The square root of 23261345 is about 4823.0016587184. The cubic root of 23261345 is about 285.4597892706.

Adding to 23261345 its reverse (54316232), we get a palindrome (77577577).

The spelling of 23261345 in words is "twenty-three million, two hundred sixty-one thousand, three hundred forty-five".