274865221 has 8 divisors (see below), whose sum is σ = 279549504. Its totient is φ = 270205920.

The previous prime is 274865183. The next prime is 274865233. The reversal of 274865221 is 122568472.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274865221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274865291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16650 + ... + 28756.

It is an arithmetic number, because the mean of its divisors is an integer number (34943688).

Almost surely, 2^274865221 is an apocalyptic number.

It is an amenable number.

274865221 is a deficient number, since it is larger than the sum of its proper divisors (4684283).

274865221 is a wasteful number, since it uses less digits than its factorization.

274865221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12491.

The product of its digits is 53760, while the sum is 37.

The square root of 274865221 is about 16579.0597139886. The cubic root of 274865221 is about 650.1894682380.

The spelling of 274865221 in words is "two hundred seventy-four million, eight hundred sixty-five thousand, two hundred twenty-one".