274171321 has 2 divisors, whose sum is σ = 274171322. Its totient is φ = 274171320.

The previous prime is 274171309. The next prime is 274171367. The reversal of 274171321 is 123171472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150405696 + 123765625 = 12264^2 + 11125^2 .

It is a cyclic number.

It is not a de Polignac number, because 274171321 - 2²¹ = 272074169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274171321.

It is not a weakly prime, because it can be changed into another prime (274171301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137085660 + 137085661.

It is an arithmetic number, because the mean of its divisors is an integer number (137085661).

Almost surely, 2^274171321 is an apocalyptic number.

It is an amenable number.

274171321 is a deficient number, since it is larger than the sum of its proper divisors (1).

274171321 is an equidigital number, since it uses as much as digits as its factorization.

274171321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 28.

The square root of 274171321 is about 16558.1194886376. The cubic root of 274171321 is about 649.6418705684.

The spelling of 274171321 in words is "two hundred seventy-four million, one hundred seventy-one thousand, three hundred twenty-one".