129650011 has 4 divisors (see below), whose sum is σ = 135286992. Its totient is φ = 124013032.

The previous prime is 129649999. The next prime is 129650033. The reversal of 129650011 is 110056921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129650011 - 2¹³ = 129641819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129650051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2818456 + ... + 2818501.

It is an arithmetic number, because the mean of its divisors is an integer number (33821748).

Almost surely, 2^129650011 is an apocalyptic number.

129650011 is a deficient number, since it is larger than the sum of its proper divisors (5636981).

129650011 is an equidigital number, since it uses as much as digits as its factorization.

129650011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5636980.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 129650011 is about 11386.3958740244. The cubic root of 129650011 is about 506.1246848084.

The spelling of 129650011 in words is "one hundred twenty-nine million, six hundred fifty thousand, eleven".