129580201 has 2 divisors, whose sum is σ = 129580202. Its totient is φ = 129580200.

The previous prime is 129580193. The next prime is 129580237. The reversal of 129580201 is 102085921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104530176 + 25050025 = 10224^2 + 5005^2 .

It is a cyclic number.

It is not a de Polignac number, because 129580201 - 2³ = 129580193 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129580201.

It is not a weakly prime, because it can be changed into another prime (129580261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64790100 + 64790101.

It is an arithmetic number, because the mean of its divisors is an integer number (64790101).

Almost surely, 2^129580201 is an apocalyptic number.

It is an amenable number.

129580201 is a deficient number, since it is larger than the sum of its proper divisors (1).

129580201 is an equidigital number, since it uses as much as digits as its factorization.

129580201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 129580201 is about 11383.3299609561. The cubic root of 129580201 is about 506.0338276166.

The spelling of 129580201 in words is "one hundred twenty-nine million, five hundred eighty thousand, two hundred one".