104145890 has 16 divisors (see below), whose sum is σ = 191452032. Its totient is φ = 40771824.

The previous prime is 104145887. The next prime is 104145907. The reversal of 104145890 is 98541401.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110324 + ... + 111263.

It is an arithmetic number, because the mean of its divisors is an integer number (11965752).

Almost surely, 2^104145890 is an apocalyptic number.

104145890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

104145890 is a deficient number, since it is larger than the sum of its proper divisors (87306142).

104145890 is a wasteful number, since it uses less digits than its factorization.

104145890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221641.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 104145890 is about 10205.1893661999. The cubic root of 104145890 is about 470.4867298134.

The spelling of 104145890 in words is "one hundred four million, one hundred forty-five thousand, eight hundred ninety".