130232989 has 2 divisors, whose sum is σ = 130232990. Its totient is φ = 130232988.

The previous prime is 130232983. The next prime is 130233013. The reversal of 130232989 is 989232031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74476900 + 55756089 = 8630^2 + 7467^2 .

It is an emirp because it is prime and its reverse (989232031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130232989 - 2³ = 130232981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130232981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65116494 + 65116495.

It is an arithmetic number, because the mean of its divisors is an integer number (65116495).

Almost surely, 2^130232989 is an apocalyptic number.

It is an amenable number.

130232989 is a deficient number, since it is larger than the sum of its proper divisors (1).

130232989 is an equidigital number, since it uses as much as digits as its factorization.

130232989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 130232989 is about 11411.9669207372. The cubic root of 130232989 is about 506.8821559043.

The spelling of 130232989 in words is "one hundred thirty million, two hundred thirty-two thousand, nine hundred eighty-nine".