103971599 has 4 divisors (see below), whose sum is σ = 104981136. Its totient is φ = 102962064.

The previous prime is 103971587. The next prime is 103971607. The reversal of 103971599 is 995179301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 995179301 = 257 ⋅3872293.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103971599 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 (103971529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504614 + ... + 504819.

It is an arithmetic number, because the mean of its divisors is an integer number (26245284).

Almost surely, 2^103971599 is an apocalyptic number.

103971599 is a deficient number, since it is larger than the sum of its proper divisors (1009537).

103971599 is a wasteful number, since it uses less digits than its factorization.

103971599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009536.

The product of its (nonzero) digits is 76545, while the sum is 44.

The square root of 103971599 is about 10196.6464585176. The cubic root of 103971599 is about 470.2241257901.

The spelling of 103971599 in words is "one hundred three million, nine hundred seventy-one thousand, five hundred ninety-nine".