23521245 has 16 divisors (see below), whose sum is σ = 41055552. Its totient is φ = 11404160.

The previous prime is 23521243. The next prime is 23521261. The reversal of 23521245 is 54212532.

It is not a de Polignac number, because 23521245 - 2¹ = 23521243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23521243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 71112 + ... + 71441.

It is an arithmetic number, because the mean of its divisors is an integer number (2565972).

Almost surely, 2^23521245 is an apocalyptic number.

It is an amenable number.

23521245 is a deficient number, since it is larger than the sum of its proper divisors (17534307).

23521245 is a wasteful number, since it uses less digits than its factorization.

23521245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142572.

The product of its digits is 2400, while the sum is 24.

The square root of 23521245 is about 4849.8706168309. The cubic root of 23521245 is about 286.5190055890.

Adding to 23521245 its reverse (54212532), we get a palindrome (77733777).

The spelling of 23521245 in words is "twenty-three million, five hundred twenty-one thousand, two hundred forty-five".