100232989 has 2 divisors, whose sum is σ = 100232990. Its totient is φ = 100232988.

The previous prime is 100232971. The next prime is 100233031. The reversal of 100232989 is 989232001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99161764 + 1071225 = 9958^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 100232989 - 2¹³ = 100224797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100232939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50116494 + 50116495.

It is an arithmetic number, because the mean of its divisors is an integer number (50116495).

Almost surely, 2^100232989 is an apocalyptic number.

It is an amenable number.

100232989 is a deficient number, since it is larger than the sum of its proper divisors (1).

100232989 is an equidigital number, since it uses as much as digits as its factorization.

100232989 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 100232989 is about 10011.6426724090. The cubic root of 100232989 is about 464.5190834773.

The spelling of 100232989 in words is "one hundred million, two hundred thirty-two thousand, nine hundred eighty-nine".