130031789 has 2 divisors, whose sum is σ = 130031790. Its totient is φ = 130031788.

The previous prime is 130031773. The next prime is 130031807. The reversal of 130031789 is 987130031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120077764 + 9954025 = 10958^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 130031789 - 2⁴ = 130031773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130031749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015894 + 65015895.

It is an arithmetic number, because the mean of its divisors is an integer number (65015895).

Almost surely, 2^130031789 is an apocalyptic number.

It is an amenable number.

130031789 is a deficient number, since it is larger than the sum of its proper divisors (1).

130031789 is an equidigital number, since it uses as much as digits as its factorization.

130031789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 130031789 is about 11403.1482056492. The cubic root of 130031789 is about 506.6209899863.

The spelling of 130031789 in words is "one hundred thirty million, thirty-one thousand, seven hundred eighty-nine".