103849865 has 24 divisors (see below), whose sum is σ = 145417032. Its totient is φ = 70990080.

The previous prime is 103849847. The next prime is 103849903. The reversal of 103849865 is 568948301.

It can be written as a sum of positive squares in 4 ways, for example, as 8357881 + 95491984 = 2891^2 + 9772^2 .

It is not a de Polignac number, because 103849865 - 2¹² = 103845769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136085 + ... + 136845.

It is an arithmetic number, because the mean of its divisors is an integer number (6059043).

Almost surely, 2^103849865 is an apocalyptic number.

It is an amenable number.

103849865 is a deficient number, since it is larger than the sum of its proper divisors (41567167).

103849865 is an equidigital number, since it uses as much as digits as its factorization.

103849865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 103849865 is about 10190.6753946929. The cubic root of 103849865 is about 470.0405352092.

The spelling of 103849865 in words is "one hundred three million, eight hundred forty-nine thousand, eight hundred sixty-five".