272087281 has 4 divisors (see below), whose sum is σ = 272268864. Its totient is φ = 271905700.

The previous prime is 272087209. The next prime is 272087303. The reversal of 272087281 is 182780272.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 272087281 - 2¹³ = 272079089 is a prime.

It is a super-2 number, since 2×272087281² = 148062976963945922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272087281.

It is not an unprimeable number, because it can be changed into a prime (272087681) 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, 88525 + ... + 91546.

It is an arithmetic number, because the mean of its divisors is an integer number (68067216).

Almost surely, 2^272087281 is an apocalyptic number.

It is an amenable number.

272087281 is a deficient number, since it is larger than the sum of its proper divisors (181583).

272087281 is a wasteful number, since it uses less digits than its factorization.

272087281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181582.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 272087281 is about 16495.0683842171. The cubic root of 272087281 is about 647.9916559219.

The spelling of 272087281 in words is "two hundred seventy-two million, eighty-seven thousand, two hundred eighty-one".