104193945 has 80 divisors (see below), whose sum is σ = 198308352. Its totient is φ = 52254720.

The previous prime is 104193937. The next prime is 104193949. The reversal of 104193945 is 549391401.

It is a happy number.

It is not a de Polignac number, because 104193945 - 2³ = 104193937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104193949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 539769 + ... + 539961.

Almost surely, 2^104193945 is an apocalyptic number.

104193945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104193945 is a deficient number, since it is larger than the sum of its proper divisors (94114407).

104193945 is a wasteful number, since it uses less digits than its factorization.

104193945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 104193945 is about 10207.5435340732. The cubic root of 104193945 is about 470.5590826870.

The spelling of 104193945 in words is "one hundred four million, one hundred ninety-three thousand, nine hundred forty-five".