274221007 has 4 divisors (see below), whose sum is σ = 276193960. Its totient is φ = 272248056.

The previous prime is 274220971. The next prime is 274221041. The reversal of 274221007 is 700122472.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274221007 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 (274221107) 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, 986268 + ... + 986545.

It is an arithmetic number, because the mean of its divisors is an integer number (69048490).

Almost surely, 2^274221007 is an apocalyptic number.

274221007 is a deficient number, since it is larger than the sum of its proper divisors (1972953).

274221007 is a wasteful number, since it uses less digits than its factorization.

274221007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972952.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 274221007 is about 16559.6197722049. The cubic root of 274221007 is about 649.6811114297.

Adding to 274221007 its reverse (700122472), we get a palindrome (974343479).

The spelling of 274221007 in words is "two hundred seventy-four million, two hundred twenty-one thousand, seven".