129048549 has 16 divisors (see below), whose sum is σ = 196804608. Its totient is φ = 73682352.

The previous prime is 129048541. The next prime is 129048553. The reversal of 129048549 is 945840921.

It is not a de Polignac number, because 129048549 - 2³ = 129048541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129048549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129048541) 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, 46684 + ... + 49370.

It is an arithmetic number, because the mean of its divisors is an integer number (12300288).

Almost surely, 2^129048549 is an apocalyptic number.

It is an amenable number.

129048549 is a deficient number, since it is larger than the sum of its proper divisors (67756059).

129048549 is a wasteful number, since it uses less digits than its factorization.

129048549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 129048549 is about 11359.9537411030. The cubic root of 129048549 is about 505.3408136290.

The spelling of 129048549 in words is "one hundred twenty-nine million, forty-eight thousand, five hundred forty-nine".