103001989 has 2 divisors, whose sum is σ = 103001990. Its totient is φ = 103001988.

The previous prime is 103001959. The next prime is 103001999. The reversal of 103001989 is 989100301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100661089 + 2340900 = 10033^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 103001989 - 2¹⁹ = 102477701 is a prime.

It is a super-2 number, since 2×103001989² = 21218819475912242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103001989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103001909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51500994 + 51500995.

It is an arithmetic number, because the mean of its divisors is an integer number (51500995).

Almost surely, 2^103001989 is an apocalyptic number.

It is an amenable number.

103001989 is a deficient number, since it is larger than the sum of its proper divisors (1).

103001989 is an equidigital number, since it uses as much as digits as its factorization.

103001989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 103001989 is about 10148.9895556159. The cubic root of 103001989 is about 468.7578320706.

The spelling of 103001989 in words is "one hundred three million, one thousand, nine hundred eighty-nine".