129079201 has 2 divisors, whose sum is σ = 129079202. Its totient is φ = 129079200.

The previous prime is 129079187. The next prime is 129079219. The reversal of 129079201 is 102970921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74304400 + 54774801 = 8620^2 + 7401^2 .

It is a cyclic number.

It is not a de Polignac number, because 129079201 - 2⁵ = 129079169 is a prime.

It is a super-2 number, since 2×129079201² = 33322880261596802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (129079231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64539600 + 64539601.

It is an arithmetic number, because the mean of its divisors is an integer number (64539601).

Almost surely, 2^129079201 is an apocalyptic number.

It is an amenable number.

129079201 is a deficient number, since it is larger than the sum of its proper divisors (1).

129079201 is an equidigital number, since it uses as much as digits as its factorization.

129079201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 129079201 is about 11361.3027862125. The cubic root of 129079201 is about 505.3808204856.

The spelling of 129079201 in words is "one hundred twenty-nine million, seventy-nine thousand, two hundred one".