103431865 has 4 divisors (see below), whose sum is σ = 124118244. Its totient is φ = 82745488.

The previous prime is 103431857. The next prime is 103431883. The reversal of 103431865 is 568134301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78641424 + 24790441 = 8868^2 + 4979^2 .

It is a cyclic number.

It is not a de Polignac number, because 103431865 - 2³ = 103431857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10343182 + ... + 10343191.

It is an arithmetic number, because the mean of its divisors is an integer number (31029561).

Almost surely, 2^103431865 is an apocalyptic number.

It is an amenable number.

103431865 is a deficient number, since it is larger than the sum of its proper divisors (20686379).

103431865 is an equidigital number, since it uses as much as digits as its factorization.

103431865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20686378.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 103431865 is about 10170.1457708334. The cubic root of 103431865 is about 469.4090429935.

The spelling of 103431865 in words is "one hundred three million, four hundred thirty-one thousand, eight hundred sixty-five".