276731149 has 2 divisors, whose sum is σ = 276731150. Its totient is φ = 276731148.

The previous prime is 276731123. The next prime is 276731167. The reversal of 276731149 is 941137672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225150025 + 51581124 = 15005^2 + 7182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276731149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276731849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138365574 + 138365575.

It is an arithmetic number, because the mean of its divisors is an integer number (138365575).

Almost surely, 2^276731149 is an apocalyptic number.

It is an amenable number.

276731149 is a deficient number, since it is larger than the sum of its proper divisors (1).

276731149 is an equidigital number, since it uses as much as digits as its factorization.

276731149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 276731149 is about 16635.2381708228. The cubic root of 276731149 is about 651.6574261751.

The spelling of 276731149 in words is "two hundred seventy-six million, seven hundred thirty-one thousand, one hundred forty-nine".