275891137 has 2 divisors, whose sum is σ = 275891138. Its totient is φ = 275891136.

The previous prime is 275891111. The next prime is 275891171. The reversal of 275891137 is 731198572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264030001 + 11861136 = 16249^2 + 3444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275891137 is a prime.

It is a super-2 number, since 2×275891137² = 152231838950305538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 275891093 and 275891102.

It is not a weakly prime, because it can be changed into another prime (275892137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137945568 + 137945569.

It is an arithmetic number, because the mean of its divisors is an integer number (137945569).

Almost surely, 2^275891137 is an apocalyptic number.

It is an amenable number.

275891137 is a deficient number, since it is larger than the sum of its proper divisors (1).

275891137 is an equidigital number, since it uses as much as digits as its factorization.

275891137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 43.

The square root of 275891137 is about 16609.9710114136. The cubic root of 275891137 is about 650.9973934203.

The spelling of 275891137 in words is "two hundred seventy-five million, eight hundred ninety-one thousand, one hundred thirty-seven".