272009129 has 32 divisors (see below), whose sum is σ = 340091136. Its totient is φ = 212244480.

The previous prime is 272009123. The next prime is 272009147. The reversal of 272009129 is 921900272.

It is not a de Polignac number, because 272009129 - 2¹² = 272005033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 272009095 and 272009104.

It is not an unprimeable number, because it can be changed into a prime (272009123) 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 31 ways as a sum of consecutive naturals, for example, 961022 + ... + 961304.

It is an arithmetic number, because the mean of its divisors is an integer number (10627848).

Almost surely, 2^272009129 is an apocalyptic number.

It is an amenable number.

272009129 is a deficient number, since it is larger than the sum of its proper divisors (68082007).

272009129 is a wasteful number, since it uses less digits than its factorization.

272009129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 272009129 is about 16492.6992636136. The cubic root of 272009129 is about 647.9296088058.

The spelling of 272009129 in words is "two hundred seventy-two million, nine thousand, one hundred twenty-nine".