103085189 has 2 divisors, whose sum is σ = 103085190. Its totient is φ = 103085188.

The previous prime is 103085179. The next prime is 103085221. The reversal of 103085189 is 981580301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64272289 + 38812900 = 8017^2 + 6230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103085189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103085119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51542594 + 51542595.

It is an arithmetic number, because the mean of its divisors is an integer number (51542595).

Almost surely, 2^103085189 is an apocalyptic number.

It is an amenable number.

103085189 is a deficient number, since it is larger than the sum of its proper divisors (1).

103085189 is an equidigital number, since it uses as much as digits as its factorization.

103085189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 103085189 is about 10153.0876584416. The cubic root of 103085189 is about 468.8840113667.

The spelling of 103085189 in words is "one hundred three million, eighty-five thousand, one hundred eighty-nine".