23545121 has 4 divisors (see below), whose sum is σ = 23649072. Its totient is φ = 23441172.

The previous prime is 23545103. The next prime is 23545139. The reversal of 23545121 is 12154532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (23545103) and next prime (23545139).

It is a cyclic number.

It is not a de Polignac number, because 23545121 - 2⁶ = 23545057 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 (23545321) 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 3 ways as a sum of consecutive naturals, for example, 51635 + ... + 52088.

It is an arithmetic number, because the mean of its divisors is an integer number (5912268).

Almost surely, 2^23545121 is an apocalyptic number.

It is an amenable number.

23545121 is a deficient number, since it is larger than the sum of its proper divisors (103951).

23545121 is a wasteful number, since it uses less digits than its factorization.

23545121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103950.

The product of its digits is 1200, while the sum is 23.

The square root of 23545121 is about 4852.3315014537. The cubic root of 23545121 is about 286.6159195971.

Adding to 23545121 its reverse (12154532), we get a palindrome (35699653).

The spelling of 23545121 in words is "twenty-three million, five hundred forty-five thousand, one hundred twenty-one".