103091663 has 4 divisors (see below), whose sum is σ = 108517560. Its totient is φ = 97665768.

The previous prime is 103091623. The next prime is 103091699. The reversal of 103091663 is 366190301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366190301 = 47 ⋅7791283.

It is a cyclic number.

It is not a de Polignac number, because 103091663 - 2¹⁰ = 103090639 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 (103091623) 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, 2712920 + ... + 2712957.

It is an arithmetic number, because the mean of its divisors is an integer number (27129390).

Almost surely, 2^103091663 is an apocalyptic number.

103091663 is a deficient number, since it is larger than the sum of its proper divisors (5425897).

103091663 is an equidigital number, since it uses as much as digits as its factorization.

103091663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425896.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 103091663 is about 10153.4064727066. The cubic root of 103091663 is about 468.8938268457.

The spelling of 103091663 in words is "one hundred three million, ninety-one thousand, six hundred sixty-three".