273222881 has 4 divisors (see below), whose sum is σ = 273423252. Its totient is φ = 273022512.

The previous prime is 273222857. The next prime is 273222889. The reversal of 273222881 is 188222372.

It is a happy number.

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 271722256 + 1500625 = 16484^2 + 1225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273222881 is a prime.

It is a super-2 number, since 2×273222881² = 149301485403880322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273222889) 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, 98126 + ... + 100871.

It is an arithmetic number, because the mean of its divisors is an integer number (68355813).

Almost surely, 2^273222881 is an apocalyptic number.

It is an amenable number.

273222881 is a deficient number, since it is larger than the sum of its proper divisors (200371).

273222881 is a wasteful number, since it uses less digits than its factorization.

273222881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200370.

The product of its digits is 21504, while the sum is 35.

The square root of 273222881 is about 16529.4549516915. The cubic root of 273222881 is about 648.8919037474.

It can be divided in two parts, 27322 and 2881, that added together give a palindrome (30203).

The spelling of 273222881 in words is "two hundred seventy-three million, two hundred twenty-two thousand, eight hundred eighty-one".