23285159 has 4 divisors (see below), whose sum is σ = 23546880. Its totient is φ = 23023440.

The previous prime is 23285149. The next prime is 23285161. The reversal of 23285159 is 95158232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23285159 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 (23285149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130727 + ... + 130904.

It is an arithmetic number, because the mean of its divisors is an integer number (5886720).

Almost surely, 2^23285159 is an apocalyptic number.

23285159 is a deficient number, since it is larger than the sum of its proper divisors (261721).

23285159 is an equidigital number, since it uses as much as digits as its factorization.

23285159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261720.

The product of its digits is 21600, while the sum is 35.

The square root of 23285159 is about 4825.4698216858. The cubic root of 23285159 is about 285.5571700100.

The spelling of 23285159 in words is "twenty-three million, two hundred eighty-five thousand, one hundred fifty-nine".