130944109 has 2 divisors, whose sum is σ = 130944110. Its totient is φ = 130944108.

The previous prime is 130944103. The next prime is 130944137. The reversal of 130944109 is 901449031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130644900 + 299209 = 11430^2 + 547^2 .

It is a cyclic number.

It is not a de Polignac number, because 130944109 - 2³ = 130944101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130944101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65472054 + 65472055.

It is an arithmetic number, because the mean of its divisors is an integer number (65472055).

Almost surely, 2^130944109 is an apocalyptic number.

It is an amenable number.

130944109 is a deficient number, since it is larger than the sum of its proper divisors (1).

130944109 is an equidigital number, since it uses as much as digits as its factorization.

130944109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 130944109 is about 11443.0812721050. The cubic root of 130944109 is about 507.8030693993.

The spelling of 130944109 in words is "one hundred thirty million, nine hundred forty-four thousand, one hundred nine".