274217243 has 4 divisors (see below), whose sum is σ = 283673040. Its totient is φ = 264761448.

The previous prime is 274217239. The next prime is 274217261. The reversal of 274217243 is 342712472.

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

It is a cyclic number.

It is not a de Polignac number, because 274217243 - 2² = 274217239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274217233) 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, 4727855 + ... + 4727912.

It is an arithmetic number, because the mean of its divisors is an integer number (70918260).

Almost surely, 2^274217243 is an apocalyptic number.

274217243 is a deficient number, since it is larger than the sum of its proper divisors (9455797).

274217243 is an equidigital number, since it uses as much as digits as its factorization.

274217243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9455796.

The product of its digits is 18816, while the sum is 32.

The square root of 274217243 is about 16559.5061218625. The cubic root of 274217243 is about 649.6781388749.

The spelling of 274217243 in words is "two hundred seventy-four million, two hundred seventeen thousand, two hundred forty-three".