23204129 has 8 divisors (see below), whose sum is σ = 25150440. Its totient is φ = 21280896.

The previous prime is 23204123. The next prime is 23204131. The reversal of 23204129 is 92140232.

It can be written as a sum of positive squares in 4 ways, for example, as 384400 + 22819729 = 620^2 + 4777^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23204129 - 2⁴ = 23204113 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 (23204123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3644 + ... + 7725.

It is an arithmetic number, because the mean of its divisors is an integer number (3143805).

Almost surely, 2^23204129 is an apocalyptic number.

It is an amenable number.

23204129 is a deficient number, since it is larger than the sum of its proper divisors (1946311).

23204129 is a wasteful number, since it uses less digits than its factorization.

23204129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11539.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23204129 is about 4817.0664309308. The cubic root of 23204129 is about 285.2255483448.

The spelling of 23204129 in words is "twenty-three million, two hundred four thousand, one hundred twenty-nine".