130323409 has 2 divisors, whose sum is σ = 130323410. Its totient is φ = 130323408.

The previous prime is 130323397. The next prime is 130323491. The reversal of 130323409 is 904323031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113742225 + 16581184 = 10665^2 + 4072^2 .

It is a cyclic number.

It is not a de Polignac number, because 130323409 - 2¹⁹ = 129799121 is a prime.

It is not a weakly prime, because it can be changed into another prime (130323499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65161704 + 65161705.

It is an arithmetic number, because the mean of its divisors is an integer number (65161705).

Almost surely, 2^130323409 is an apocalyptic number.

It is an amenable number.

130323409 is a deficient number, since it is larger than the sum of its proper divisors (1).

130323409 is an equidigital number, since it uses as much as digits as its factorization.

130323409 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 25.

The square root of 130323409 is about 11415.9278641729. The cubic root of 130323409 is about 506.9994372014. Note that the first 3 decimals are identical.

The spelling of 130323409 in words is "one hundred thirty million, three hundred twenty-three thousand, four hundred nine".