103185923 has 4 divisors (see below), whose sum is σ = 103391568. Its totient is φ = 102980280.

The previous prime is 103185919. The next prime is 103185947. The reversal of 103185923 is 329581301.

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

It is a cyclic number.

It is not a de Polignac number, because 103185923 - 2² = 103185919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103185923.

It is not an unprimeable number, because it can be changed into a prime (103185983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 102068 + ... + 103073.

It is an arithmetic number, because the mean of its divisors is an integer number (25847892).

Almost surely, 2^103185923 is an apocalyptic number.

103185923 is a deficient number, since it is larger than the sum of its proper divisors (205645).

103185923 is an equidigital number, since it uses as much as digits as its factorization.

103185923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205644.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 103185923 is about 10158.0472040644. The cubic root of 103185923 is about 469.0366915131.

The spelling of 103185923 in words is "one hundred three million, one hundred eighty-five thousand, nine hundred twenty-three".