103202989 has 2 divisors, whose sum is σ = 103202990. Its totient is φ = 103202988.

The previous prime is 103202959. The next prime is 103203007. The reversal of 103202989 is 989202301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96138025 + 7064964 = 9805^2 + 2658^2 .

It is a cyclic number.

It is not a de Polignac number, because 103202989 - 2⁷ = 103202861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103202959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51601494 + 51601495.

It is an arithmetic number, because the mean of its divisors is an integer number (51601495).

Almost surely, 2^103202989 is an apocalyptic number.

It is an amenable number.

103202989 is a deficient number, since it is larger than the sum of its proper divisors (1).

103202989 is an equidigital number, since it uses as much as digits as its factorization.

103202989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 103202989 is about 10158.8871929951. The cubic root of 103202989 is about 469.0625482020.

The spelling of 103202989 in words is "one hundred three million, two hundred two thousand, nine hundred eighty-nine".