104891445 has 48 divisors (see below), whose sum is σ = 198761472. Its totient is φ = 50941440.

The previous prime is 104891441. The next prime is 104891461. The reversal of 104891445 is 544198401.

It is not a de Polignac number, because 104891445 - 2² = 104891441 is a prime.

It is a super-2 number, since 2×104891445² = 22004430468376050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104891441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21504 + ... + 25926.

It is an arithmetic number, because the mean of its divisors is an integer number (4140864).

Almost surely, 2^104891445 is an apocalyptic number.

104891445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104891445 is a deficient number, since it is larger than the sum of its proper divisors (93870027).

104891445 is a wasteful number, since it uses less digits than its factorization.

104891445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4482 (or 4479 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 104891445 is about 10241.6524545603. The cubic root of 104891445 is about 471.6067612504.

The spelling of 104891445 in words is "one hundred four million, eight hundred ninety-one thousand, four hundred forty-five".