104451345 has 24 divisors (see below), whose sum is σ = 182109096. Its totient is φ = 55381248.

The previous prime is 104451331. The next prime is 104451397. The reversal of 104451345 is 543154401.

It is a happy number.

104451345 is a `hidden beast` number, since 104 + 4 + 513 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 23882769 + 80568576 = 4887^2 + 8976^2 .

It is not a de Polignac number, because 104451345 - 2⁴ = 104451329 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 1077 + ... + 14493.

It is an arithmetic number, because the mean of its divisors is an integer number (7587879).

Almost surely, 2^104451345 is an apocalyptic number.

104451345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104451345 is a deficient number, since it is larger than the sum of its proper divisors (77657751).

104451345 is a wasteful number, since it uses less digits than its factorization.

104451345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13601 (or 13598 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 104451345 is about 10220.1440792192. The cubic root of 104451345 is about 470.9462526739.

The spelling of 104451345 in words is "one hundred four million, four hundred fifty-one thousand, three hundred forty-five".