276544061 has 2 divisors, whose sum is σ = 276544062. Its totient is φ = 276544060.

The previous prime is 276544043. The next prime is 276544063. The reversal of 276544061 is 160445672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161925625 + 114618436 = 12725^2 + 10706^2 .

It is a cyclic number.

It is not a de Polignac number, because 276544061 - 2⁶ = 276543997 is a prime.

Together with 276544063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276544063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138272030 + 138272031.

It is an arithmetic number, because the mean of its divisors is an integer number (138272031).

Almost surely, 2^276544061 is an apocalyptic number.

It is an amenable number.

276544061 is a deficient number, since it is larger than the sum of its proper divisors (1).

276544061 is an equidigital number, since it uses as much as digits as its factorization.

276544061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 276544061 is about 16629.6139762774. The cubic root of 276544061 is about 651.5105390009.

The spelling of 276544061 in words is "two hundred seventy-six million, five hundred forty-four thousand, sixty-one".