103030189 has 2 divisors, whose sum is σ = 103030190. Its totient is φ = 103030188.

The previous prime is 103030177. The next prime is 103030211. The reversal of 103030189 is 981030301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57912100 + 45118089 = 7610^2 + 6717^2 .

It is an emirp because it is prime and its reverse (981030301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103030189 - 2¹¹ = 103028141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103030129) 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 as a sum of consecutive naturals, namely, 51515094 + 51515095.

It is an arithmetic number, because the mean of its divisors is an integer number (51515095).

Almost surely, 2^103030189 is an apocalyptic number.

It is an amenable number.

103030189 is a deficient number, since it is larger than the sum of its proper divisors (1).

103030189 is an equidigital number, since it uses as much as digits as its factorization.

103030189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 103030189 is about 10150.3787614059. The cubic root of 103030189 is about 468.8006071821.

The spelling of 103030189 in words is "one hundred three million, thirty thousand, one hundred eighty-nine".