23204135 has 16 divisors (see below), whose sum is σ = 28619136. Its totient is φ = 18052608.

The previous prime is 23204131. The next prime is 23204179. The reversal of 23204135 is 53140232.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23204135 - 2² = 23204131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23204131) 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, 68687 + ... + 69023.

It is an arithmetic number, because the mean of its divisors is an integer number (1788696).

Almost surely, 2^23204135 is an apocalyptic number.

23204135 is a deficient number, since it is larger than the sum of its proper divisors (5415001).

23204135 is a wasteful number, since it uses less digits than its factorization.

23204135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23204135 is about 4817.0670537164. The cubic root of 23204135 is about 285.2255729288.

Adding to 23204135 its reverse (53140232), we get a palindrome (76344367).

The spelling of 23204135 in words is "twenty-three million, two hundred four thousand, one hundred thirty-five".