129241701 has 12 divisors (see below), whose sum is σ = 197664012. Its totient is φ = 81092736.

The previous prime is 129241687. The next prime is 129241711. The reversal of 129241701 is 107142921.

It can be written as a sum of positive squares in 2 ways, for example, as 41912676 + 87329025 = 6474^2 + 9345^2 .

It is not a de Polignac number, because 129241701 - 2¹⁰ = 129240677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129241711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422206 + ... + 422511.

It is an arithmetic number, because the mean of its divisors is an integer number (16472001).

Almost surely, 2^129241701 is an apocalyptic number.

It is an amenable number.

129241701 is a deficient number, since it is larger than the sum of its proper divisors (68422311).

129241701 is a wasteful number, since it uses less digits than its factorization.

129241701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844740 (or 844737 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 129241701 is about 11368.4520054403. The cubic root of 129241701 is about 505.5928090533.

The spelling of 129241701 in words is "one hundred twenty-nine million, two hundred forty-one thousand, seven hundred one".