103120189 has 2 divisors, whose sum is σ = 103120190. Its totient is φ = 103120188.

The previous prime is 103120183. The next prime is 103120217. The reversal of 103120189 is 981021301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72539289 + 30580900 = 8517^2 + 5530^2 .

It is a cyclic number.

It is not a de Polignac number, because 103120189 - 2⁹ = 103119677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103120183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51560094 + 51560095.

It is an arithmetic number, because the mean of its divisors is an integer number (51560095).

Almost surely, 2^103120189 is an apocalyptic number.

It is an amenable number.

103120189 is a deficient number, since it is larger than the sum of its proper divisors (1).

103120189 is an equidigital number, since it uses as much as digits as its factorization.

103120189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 103120189 is about 10154.8111257669. The cubic root of 103120189 is about 468.9370713119.

The spelling of 103120189 in words is "one hundred three million, one hundred twenty thousand, one hundred eighty-nine".