23245145 has 32 divisors (see below), whose sum is σ = 35078400. Its totient is φ = 14365440.

The previous prime is 23245141. The next prime is 23245169. The reversal of 23245145 is 54154232.

It is a happy number.

It is not a de Polignac number, because 23245145 - 2² = 23245141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23245141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66431 + ... + 66779.

It is an arithmetic number, because the mean of its divisors is an integer number (1096200).

Almost surely, 2^23245145 is an apocalyptic number.

It is an amenable number.

23245145 is a deficient number, since it is larger than the sum of its proper divisors (11833255).

23245145 is a wasteful number, since it uses less digits than its factorization.

23245145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its digits is 4800, while the sum is 26.

The square root of 23245145 is about 4821.3219141642. The cubic root of 23245145 is about 285.3935058787.

Adding to 23245145 its reverse (54154232), we get a palindrome (77399377).

The spelling of 23245145 in words is "twenty-three million, two hundred forty-five thousand, one hundred forty-five".