276131263 has 2 divisors, whose sum is σ = 276131264. Its totient is φ = 276131262.

The previous prime is 276131179. The next prime is 276131267. The reversal of 276131263 is 362131672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276131263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276131267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138065631 + 138065632.

It is an arithmetic number, because the mean of its divisors is an integer number (138065632).

Almost surely, 2^276131263 is an apocalyptic number.

276131263 is a deficient number, since it is larger than the sum of its proper divisors (1).

276131263 is an equidigital number, since it uses as much as digits as its factorization.

276131263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 276131263 is about 16617.1978082949. The cubic root of 276131263 is about 651.1862071090.

The spelling of 276131263 in words is "two hundred seventy-six million, one hundred thirty-one thousand, two hundred sixty-three".