129627249 has 16 divisors (see below), whose sum is σ = 174839808. Its totient is φ = 85421952.

The previous prime is 129627209. The next prime is 129627259. The reversal of 129627249 is 942726921.

It is not a de Polignac number, because 129627249 - 2²⁰ = 128578673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129627249.

It is not an unprimeable number, because it can be changed into a prime (129627209) 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 15 ways as a sum of consecutive naturals, for example, 150829 + ... + 151685.

It is an arithmetic number, because the mean of its divisors is an integer number (10927488).

Almost surely, 2^129627249 is an apocalyptic number.

It is an amenable number.

129627249 is a deficient number, since it is larger than the sum of its proper divisors (45212559).

129627249 is a wasteful number, since it uses less digits than its factorization.

129627249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384.

The product of its digits is 108864, while the sum is 42.

The square root of 129627249 is about 11385.3963040379. The cubic root of 129627249 is about 506.0950638202.

The spelling of 129627249 in words is "one hundred twenty-nine million, six hundred twenty-seven thousand, two hundred forty-nine".