109903573 has 6 divisors (see below), whose sum is σ = 119008194. Its totient is φ = 101449296.

The previous prime is 109903567. The next prime is 109903597. The reversal of 109903573 is 375309901.

It can be written as a sum of positive squares in 3 ways, for example, as 5189284 + 104714289 = 2278^2 + 10233^2 .

It is not a de Polignac number, because 109903573 - 2¹⁷ = 109772501 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 (109903513) 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 5 ways as a sum of consecutive naturals, for example, 324990 + ... + 325327.

It is an arithmetic number, because the mean of its divisors is an integer number (19834699).

Almost surely, 2^109903573 is an apocalyptic number.

109903573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

109903573 is a deficient number, since it is larger than the sum of its proper divisors (9104621).

109903573 is an equidigital number, since it uses as much as digits as its factorization.

109903573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650343 (or 650330 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 109903573 is about 10483.4904969671. The cubic root of 109903573 is about 479.0019380358.

The spelling of 109903573 in words is "one hundred nine million, nine hundred three thousand, five hundred seventy-three".