275494019 has 2 divisors, whose sum is σ = 275494020. Its totient is φ = 275494018.

The previous prime is 275494001. The next prime is 275494039. The reversal of 275494019 is 910494572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275494019 - 2⁸ = 275493763 is a prime.

It is a super-2 number, since 2×275494019² = 151793909009544722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (275494039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137747009 + 137747010.

It is an arithmetic number, because the mean of its divisors is an integer number (137747010).

Almost surely, 2^275494019 is an apocalyptic number.

275494019 is a deficient number, since it is larger than the sum of its proper divisors (1).

275494019 is an equidigital number, since it uses as much as digits as its factorization.

275494019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 275494019 is about 16598.0125015015. The cubic root of 275494019 is about 650.6848946520.

The spelling of 275494019 in words is "two hundred seventy-five million, four hundred ninety-four thousand, nineteen".