275748491 has 2 divisors, whose sum is σ = 275748492. Its totient is φ = 275748490.

The previous prime is 275748469. The next prime is 275748497. The reversal of 275748491 is 194847572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 275748491 - 2⁶ = 275748427 is a prime.

It is not a weakly prime, because it can be changed into another prime (275748497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137874245 + 137874246.

It is an arithmetic number, because the mean of its divisors is an integer number (137874246).

Almost surely, 2^275748491 is an apocalyptic number.

275748491 is a deficient number, since it is larger than the sum of its proper divisors (1).

275748491 is an equidigital number, since it uses as much as digits as its factorization.

275748491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 47.

The square root of 275748491 is about 16605.6764692078. The cubic root of 275748491 is about 650.8851774400.

The spelling of 275748491 in words is "two hundred seventy-five million, seven hundred forty-eight thousand, four hundred ninety-one".