23520105 has 32 divisors (see below), whose sum is σ = 47788800. Its totient is φ = 10751616.

The previous prime is 23520083. The next prime is 23520109. The reversal of 23520105 is 50102532.

It is a happy number.

It is not a de Polignac number, because 23520105 - 2⁸ = 23519849 is a prime.

It is a super-2 number, since 2×23520105² = 1106390678422050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23520109) 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, 11500 + ... + 13389.

It is an arithmetic number, because the mean of its divisors is an integer number (1493400).

Almost surely, 2^23520105 is an apocalyptic number.

It is an amenable number.

23520105 is an abundant number, since it is smaller than the sum of its proper divisors (24268695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23520105 is a wasteful number, since it uses less digits than its factorization.

23520105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24910 (or 24904 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 23520105 is about 4849.7530864983. The cubic root of 23520105 is about 286.5143766257.

Adding to 23520105 its reverse (50102532), we get a palindrome (73622637).

The spelling of 23520105 in words is "twenty-three million, five hundred twenty thousand, one hundred five".