274097189 has 2 divisors, whose sum is σ = 274097190. Its totient is φ = 274097188.

The previous prime is 274097149. The next prime is 274097191. The reversal of 274097189 is 981790472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264225025 + 9872164 = 16255^2 + 3142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274097189 is a prime.

Together with 274097191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274097119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137048594 + 137048595.

It is an arithmetic number, because the mean of its divisors is an integer number (137048595).

Almost surely, 2^274097189 is an apocalyptic number.

It is an amenable number.

274097189 is a deficient number, since it is larger than the sum of its proper divisors (1).

274097189 is an equidigital number, since it uses as much as digits as its factorization.

274097189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 274097189 is about 16555.8807980729. The cubic root of 274097189 is about 649.5833140034.

The spelling of 274097189 in words is "two hundred seventy-four million, ninety-seven thousand, one hundred eighty-nine".