13103985 has 24 divisors (see below), whose sum is σ = 21438144. Its totient is φ = 6834880.

The previous prime is 13103971. The next prime is 13103999. The reversal of 13103985 is 58930131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13103971) and next prime (13103999).

It is not a de Polignac number, because 13103985 - 2⁵ = 13103953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41980 + ... + 42290.

It is an arithmetic number, because the mean of its divisors is an integer number (893256).

Almost surely, 2^13103985 is an apocalyptic number.

13103985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13103985 is a deficient number, since it is larger than the sum of its proper divisors (8334159).

13103985 is an equidigital number, since it uses as much as digits as its factorization.

13103985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 13103985 is about 3619.9426791042. The cubic root of 13103985 is about 235.7587367304.

The spelling of 13103985 in words is "thirteen million, one hundred three thousand, nine hundred eighty-five".