104491645 has 8 divisors (see below), whose sum is σ = 130841856. Its totient is φ = 79958736.

The previous prime is 104491637. The next prime is 104491649. The reversal of 104491645 is 546194401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 104491645 - 2³ = 104491637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104491645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104491649) 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, 454197 + ... + 454426.

It is an arithmetic number, because the mean of its divisors is an integer number (16355232).

Almost surely, 2^104491645 is an apocalyptic number.

It is an amenable number.

104491645 is a deficient number, since it is larger than the sum of its proper divisors (26350211).

104491645 is an equidigital number, since it uses as much as digits as its factorization.

104491645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908651.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 104491645 is about 10222.1154855539. The cubic root of 104491645 is about 471.0068125886.

The spelling of 104491645 in words is "one hundred four million, four hundred ninety-one thousand, six hundred forty-five".