272161272 has 16 divisors (see below), whose sum is σ = 680403240. Its totient is φ = 90720416.

The previous prime is 272161271. The next prime is 272161283.

272161272 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272161271) 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, 5670003 + ... + 5670050.

Almost surely, 2^272161272 is an apocalyptic number.

It is an amenable number.

272161272 is an abundant number, since it is smaller than the sum of its proper divisors (408241968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

272161272 is a wasteful number, since it uses less digits than its factorization.

272161272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11340062 (or 11340058 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 272161272 is about 16497.3110536233. The cubic root of 272161272 is about 648.0503885523.

The spelling of 272161272 in words is "two hundred seventy-two million, one hundred sixty-one thousand, two hundred seventy-two".