275226397 has 2 divisors, whose sum is σ = 275226398. Its totient is φ = 275226396.

The previous prime is 275226373. The next prime is 275226431. The reversal of 275226397 is 793622572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219365721 + 55860676 = 14811^2 + 7474^2 .

It is a cyclic number.

It is not a de Polignac number, because 275226397 - 2¹⁵ = 275193629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275226307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137613198 + 137613199.

It is an arithmetic number, because the mean of its divisors is an integer number (137613199).

Almost surely, 2^275226397 is an apocalyptic number.

It is an amenable number.

275226397 is a deficient number, since it is larger than the sum of its proper divisors (1).

275226397 is an equidigital number, since it uses as much as digits as its factorization.

275226397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 43.

The square root of 275226397 is about 16589.9486738205. The cubic root of 275226397 is about 650.4741290230.

The spelling of 275226397 in words is "two hundred seventy-five million, two hundred twenty-six thousand, three hundred ninety-seven".