276563141 has 2 divisors, whose sum is σ = 276563142. Its totient is φ = 276563140.

The previous prime is 276563117. The next prime is 276563153. The reversal of 276563141 is 141365672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276556900 + 6241 = 16630^2 + 79^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276563141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276563101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138281570 + 138281571.

It is an arithmetic number, because the mean of its divisors is an integer number (138281571).

Almost surely, 2^276563141 is an apocalyptic number.

It is an amenable number.

276563141 is a deficient number, since it is larger than the sum of its proper divisors (1).

276563141 is an equidigital number, since it uses as much as digits as its factorization.

276563141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 276563141 is about 16630.1876417556. The cubic root of 276563141 is about 651.5255221892.

It can be divided in two parts, 2765631 and 41, that added together give a palindrome (2765672).

The spelling of 276563141 in words is "two hundred seventy-six million, five hundred sixty-three thousand, one hundred forty-one".