275316491 has 2 divisors, whose sum is σ = 275316492. Its totient is φ = 275316490.

The previous prime is 275316449. The next prime is 275316497. The reversal of 275316491 is 194613572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 275316491 - 2¹⁴ = 275300107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275316497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137658245 + 137658246.

It is an arithmetic number, because the mean of its divisors is an integer number (137658246).

Almost surely, 2^275316491 is an apocalyptic number.

275316491 is a deficient number, since it is larger than the sum of its proper divisors (1).

275316491 is an equidigital number, since it uses as much as digits as its factorization.

275316491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 275316491 is about 16592.6637704740. The cubic root of 275316491 is about 650.5450977763.

The spelling of 275316491 in words is "two hundred seventy-five million, three hundred sixteen thousand, four hundred ninety-one".