23200545 has 16 divisors (see below), whose sum is σ = 37268352. Its totient is φ = 12324480.

The previous prime is 23200543. The next prime is 23200549. The reversal of 23200545 is 54500232.

It is not a de Polignac number, because 23200545 - 2¹ = 23200543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23200543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005 + ... + 6885.

It is an arithmetic number, because the mean of its divisors is an integer number (2329272).

Almost surely, 2^23200545 is an apocalyptic number.

It is an amenable number.

23200545 is a deficient number, since it is larger than the sum of its proper divisors (14067807).

23200545 is a wasteful number, since it uses less digits than its factorization.

23200545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 23200545 is about 4816.6944059178. The cubic root of 23200545 is about 285.2108627257.

Adding to 23200545 its reverse (54500232), we get a palindrome (77700777).

The spelling of 23200545 in words is "twenty-three million, two hundred thousand, five hundred forty-five".