104040291 has 4 divisors (see below), whose sum is σ = 138720392. Its totient is φ = 69360192.

The previous prime is 104040283. The next prime is 104040301. The reversal of 104040291 is 192040401.

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

It is not a de Polignac number, because 104040291 - 2³ = 104040283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104040241) 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, 17340046 + ... + 17340051.

It is an arithmetic number, because the mean of its divisors is an integer number (34680098).

Almost surely, 2^104040291 is an apocalyptic number.

104040291 is a deficient number, since it is larger than the sum of its proper divisors (34680101).

104040291 is an equidigital number, since it uses as much as digits as its factorization.

104040291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34680100.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 104040291 is about 10200.0142646959. The cubic root of 104040291 is about 470.3276589508.

Adding to 104040291 its reverse (192040401), we get a palindrome (296080692).

The spelling of 104040291 in words is "one hundred four million, forty thousand, two hundred ninety-one".