103998519 has 8 divisors (see below), whose sum is σ = 154071920. Its totient is φ = 69332328.

The previous prime is 103998493. The next prime is 103998529. The reversal of 103998519 is 915899301.

103998519 is a `hidden beast` number, since 10 + 39 + 98 + 519 = 666.

It is not a de Polignac number, because 103998519 - 2¹¹ = 103996471 is a prime.

It is a super-2 number, since 2×103998519² = 21631383908386722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103998529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925872 + ... + 1925925.

It is an arithmetic number, because the mean of its divisors is an integer number (19258990).

Almost surely, 2^103998519 is an apocalyptic number.

103998519 is a deficient number, since it is larger than the sum of its proper divisors (50073401).

103998519 is an equidigital number, since it uses as much as digits as its factorization.

103998519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851806 (or 3851800 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 103998519 is about 10197.9664149280. The cubic root of 103998519 is about 470.2647052729.

The spelling of 103998519 in words is "one hundred three million, nine hundred ninety-eight thousand, five hundred nineteen".