103031189 has 2 divisors, whose sum is σ = 103031190. Its totient is φ = 103031188.

The previous prime is 103031183. The next prime is 103031231. The reversal of 103031189 is 981130301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78180964 + 24850225 = 8842^2 + 4985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103031189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103031183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51515594 + 51515595.

It is an arithmetic number, because the mean of its divisors is an integer number (51515595).

Almost surely, 2^103031189 is an apocalyptic number.

It is an amenable number.

103031189 is a deficient number, since it is larger than the sum of its proper divisors (1).

103031189 is an equidigital number, since it uses as much as digits as its factorization.

103031189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 103031189 is about 10150.4280205319. The cubic root of 103031189 is about 468.8021238867.

The spelling of 103031189 in words is "one hundred three million, thirty-one thousand, one hundred eighty-nine".