129058081 has 2 divisors, whose sum is σ = 129058082. Its totient is φ = 129058080.

The previous prime is 129058057. The next prime is 129058133. The reversal of 129058081 is 180850921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77088400 + 51969681 = 8780^2 + 7209^2 .

It is a cyclic number.

It is not a de Polignac number, because 129058081 - 2⁷ = 129057953 is a prime.

It is a super-2 number, since 2×129058081² = 33311976542805122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (129058031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64529040 + 64529041.

It is an arithmetic number, because the mean of its divisors is an integer number (64529041).

Almost surely, 2^129058081 is an apocalyptic number.

It is an amenable number.

129058081 is a deficient number, since it is larger than the sum of its proper divisors (1).

129058081 is an equidigital number, since it uses as much as digits as its factorization.

129058081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 129058081 is about 11360.3732773180. The cubic root of 129058081 is about 505.3532554324.

The spelling of 129058081 in words is "one hundred twenty-nine million, fifty-eight thousand, eighty-one".