272431009 has 4 divisors (see below), whose sum is σ = 272702020. Its totient is φ = 272160000.

The previous prime is 272430989. The next prime is 272431013. The reversal of 272431009 is 900134272.

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 109307025 + 163123984 = 10455^2 + 12772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272431009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272431079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133992 + ... + 136009.

It is an arithmetic number, because the mean of its divisors is an integer number (68175505).

Almost surely, 2^272431009 is an apocalyptic number.

It is an amenable number.

272431009 is a deficient number, since it is larger than the sum of its proper divisors (271011).

272431009 is a wasteful number, since it uses less digits than its factorization.

272431009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271010.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 272431009 is about 16505.4842098013. The cubic root of 272431009 is about 648.2644104929.

It can be divided in two parts, 2724 and 31009, that added together give a palindrome (33733).

The spelling of 272431009 in words is "two hundred seventy-two million, four hundred thirty-one thousand, nine".