275069891 has 2 divisors, whose sum is σ = 275069892. Its totient is φ = 275069890.

The previous prime is 275069881. The next prime is 275069917. The reversal of 275069891 is 198960572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275069891 - 2¹⁴ = 275053507 is a prime.

It is not a weakly prime, because it can be changed into another prime (275069881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137534945 + 137534946.

It is an arithmetic number, because the mean of its divisors is an integer number (137534946).

Almost surely, 2^275069891 is an apocalyptic number.

275069891 is a deficient number, since it is larger than the sum of its proper divisors (1).

275069891 is an equidigital number, since it uses as much as digits as its factorization.

275069891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 275069891 is about 16585.2311108408. The cubic root of 275069891 is about 650.3508094482.

The spelling of 275069891 in words is "two hundred seventy-five million, sixty-nine thousand, eight hundred ninety-one".