274985197 has 2 divisors, whose sum is σ = 274985198. Its totient is φ = 274985196.

The previous prime is 274985153. The next prime is 274985209. The reversal of 274985197 is 791589472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247307076 + 27678121 = 15726^2 + 5261^2 .

It is a cyclic number.

It is not a de Polignac number, because 274985197 - 2¹⁵ = 274952429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274980197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137492598 + 137492599.

It is an arithmetic number, because the mean of its divisors is an integer number (137492599).

Almost surely, 2^274985197 is an apocalyptic number.

It is an amenable number.

274985197 is a deficient number, since it is larger than the sum of its proper divisors (1).

274985197 is an equidigital number, since it uses as much as digits as its factorization.

274985197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 52.

The square root of 274985197 is about 16582.6776185271. The cubic root of 274985197 is about 650.2840549405.

The spelling of 274985197 in words is "two hundred seventy-four million, nine hundred eighty-five thousand, one hundred ninety-seven".