103899445 has 16 divisors (see below), whose sum is σ = 138604032. Its totient is φ = 74249280.

The previous prime is 103899443. The next prime is 103899463. The reversal of 103899445 is 544998301.

It is a happy number.

It is not a de Polignac number, because 103899445 - 2¹ = 103899443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103899443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23767 + ... + 27796.

It is an arithmetic number, because the mean of its divisors is an integer number (8662752).

Almost surely, 2^103899445 is an apocalyptic number.

It is an amenable number.

103899445 is a deficient number, since it is larger than the sum of its proper divisors (34704587).

103899445 is a wasteful number, since it uses less digits than its factorization.

103899445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51612.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 103899445 is about 10193.1077204158. The cubic root of 103899445 is about 470.1153255553.

The spelling of 103899445 in words is "one hundred three million, eight hundred ninety-nine thousand, four hundred forty-five".