275781113 has 2 divisors, whose sum is σ = 275781114. Its totient is φ = 275781112.

The previous prime is 275781083. The next prime is 275781119. The reversal of 275781113 is 311187572.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275161744 + 619369 = 16588^2 + 787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275781113 is a prime.

It is not a weakly prime, because it can be changed into another prime (275781119) 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, 137890556 + 137890557.

It is an arithmetic number, because the mean of its divisors is an integer number (137890557).

Almost surely, 2^275781113 is an apocalyptic number.

It is an amenable number.

275781113 is a deficient number, since it is larger than the sum of its proper divisors (1).

275781113 is an equidigital number, since it uses as much as digits as its factorization.

275781113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 35.

The square root of 275781113 is about 16606.6586946321. The cubic root of 275781113 is about 650.9108437503.

The spelling of 275781113 in words is "two hundred seventy-five million, seven hundred eighty-one thousand, one hundred thirteen".