274394189 has 2 divisors, whose sum is σ = 274394190. Its totient is φ = 274394188.

The previous prime is 274394177. The next prime is 274394213. The reversal of 274394189 is 981493472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160224964 + 114169225 = 12658^2 + 10685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274394189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274394119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137197094 + 137197095.

It is an arithmetic number, because the mean of its divisors is an integer number (137197095).

Almost surely, 2^274394189 is an apocalyptic number.

It is an amenable number.

274394189 is a deficient number, since it is larger than the sum of its proper divisors (1).

274394189 is an equidigital number, since it uses as much as digits as its factorization.

274394189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 274394189 is about 16564.8479920584. The cubic root of 274394189 is about 649.8178495522.

The spelling of 274394189 in words is "two hundred seventy-four million, three hundred ninety-four thousand, one hundred eighty-nine".