104591239 has 4 divisors (see below), whose sum is σ = 104611824. Its totient is φ = 104570656.

The previous prime is 104591233. The next prime is 104591321. The reversal of 104591239 is 932195401.

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

It is a cyclic number.

It is not a de Polignac number, because 104591239 - 2⁷ = 104591111 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 (104591233) 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, 3414 + ... + 14860.

It is an arithmetic number, because the mean of its divisors is an integer number (26152956).

Almost surely, 2^104591239 is an apocalyptic number.

104591239 is a deficient number, since it is larger than the sum of its proper divisors (20585).

104591239 is an equidigital number, since it uses as much as digits as its factorization.

104591239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20584.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 104591239 is about 10226.9858218343. The cubic root of 104591239 is about 471.1564084624.

The spelling of 104591239 in words is "one hundred four million, five hundred ninety-one thousand, two hundred thirty-nine".