129532011 has 16 divisors (see below), whose sum is σ = 197568000. Its totient is φ = 73948608.

The previous prime is 129532001. The next prime is 129532019. The reversal of 129532011 is 110235921.

It is not a de Polignac number, because 129532011 - 2⁹ = 129531499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129532019) 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 15 ways as a sum of consecutive naturals, for example, 27175 + ... + 31583.

It is an arithmetic number, because the mean of its divisors is an integer number (12348000).

Almost surely, 2^129532011 is an apocalyptic number.

129532011 is a deficient number, since it is larger than the sum of its proper divisors (68035989).

129532011 is a wasteful number, since it uses less digits than its factorization.

129532011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 129532011 is about 11381.2130724277. The cubic root of 129532011 is about 505.9710896531.

Adding to 129532011 its reverse (110235921), we get a palindrome (239767932).

The spelling of 129532011 in words is "one hundred twenty-nine million, five hundred thirty-two thousand, eleven".