130421209 has 2 divisors, whose sum is σ = 130421210. Its totient is φ = 130421208.

The previous prime is 130421191. The next prime is 130421227. The reversal of 130421209 is 902124031.

It is a balanced prime because it is at equal distance from previous prime (130421191) and next prime (130421227).

It can be written as a sum of positive squares in only one way, i.e., 76177984 + 54243225 = 8728^2 + 7365^2 .

It is an emirp because it is prime and its reverse (902124031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130421209 - 2⁵ = 130421177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130421209.

It is not a weakly prime, because it can be changed into another prime (130428209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65210604 + 65210605.

It is an arithmetic number, because the mean of its divisors is an integer number (65210605).

Almost surely, 2^130421209 is an apocalyptic number.

It is an amenable number.

130421209 is a deficient number, since it is larger than the sum of its proper divisors (1).

130421209 is an equidigital number, since it uses as much as digits as its factorization.

130421209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 130421209 is about 11420.2105497228. The cubic root of 130421209 is about 507.1262298400.

The spelling of 130421209 in words is "one hundred thirty million, four hundred twenty-one thousand, two hundred nine".