272045189 has 4 divisors (see below), whose sum is σ = 292971756. Its totient is φ = 251118624.

The previous prime is 272045161. The next prime is 272045239. The reversal of 272045189 is 981540272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66552964 + 205492225 = 8158^2 + 14335^2 .

It is a cyclic number.

It is not a de Polignac number, because 272045189 - 2²⁰ = 270996613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272045129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10463264 + ... + 10463289.

It is an arithmetic number, because the mean of its divisors is an integer number (73242939).

Almost surely, 2^272045189 is an apocalyptic number.

It is an amenable number.

272045189 is a deficient number, since it is larger than the sum of its proper divisors (20926567).

272045189 is a wasteful number, since it uses less digits than its factorization.

272045189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20926566.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 272045189 is about 16493.7924383690. The cubic root of 272045189 is about 647.9582393514.

The spelling of 272045189 in words is "two hundred seventy-two million, forty-five thousand, one hundred eighty-nine".