272155609 has 8 divisors (see below), whose sum is σ = 304921728. Its totient is φ = 240726960.

The previous prime is 272155577. The next prime is 272155627. The reversal of 272155609 is 906551272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 272155609 - 2⁵ = 272155577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272155649) 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 7 ways as a sum of consecutive naturals, for example, 333937 + ... + 334750.

It is an arithmetic number, because the mean of its divisors is an integer number (38115216).

Almost surely, 2^272155609 is an apocalyptic number.

It is an amenable number.

272155609 is a deficient number, since it is larger than the sum of its proper divisors (32766119).

272155609 is a wasteful number, since it uses less digits than its factorization.

272155609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668735.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 272155609 is about 16497.1394186992. The cubic root of 272155609 is about 648.0458937482.

The spelling of 272155609 in words is "two hundred seventy-two million, one hundred fifty-five thousand, six hundred nine".