189103117 has 4 divisors (see below), whose sum is σ = 216117856. Its totient is φ = 162088380.

The previous prime is 189103081. The next prime is 189103129. The reversal of 189103117 is 711301981.

189103117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189103117 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 (189103157) 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, 13507359 + ... + 13507372.

It is an arithmetic number, because the mean of its divisors is an integer number (54029464).

Almost surely, 2^189103117 is an apocalyptic number.

It is an amenable number.

189103117 is a deficient number, since it is larger than the sum of its proper divisors (27014739).

189103117 is an equidigital number, since it uses as much as digits as its factorization.

189103117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27014738.

The product of its (nonzero) digits is 1512, while the sum is 31.

The square root of 189103117 is about 13751.4769025003. The cubic root of 189103117 is about 573.9837039650.

The spelling of 189103117 in words is "one hundred eighty-nine million, one hundred three thousand, one hundred seventeen".