276440137 has 2 divisors, whose sum is σ = 276440138. Its totient is φ = 276440136.

The previous prime is 276440083. The next prime is 276440159. The reversal of 276440137 is 731044672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260790201 + 15649936 = 16149^2 + 3956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276440137 is a prime.

It is not a weakly prime, because it can be changed into another prime (276444137) 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, 138220068 + 138220069.

It is an arithmetic number, because the mean of its divisors is an integer number (138220069).

Almost surely, 2^276440137 is an apocalyptic number.

It is an amenable number.

276440137 is a deficient number, since it is larger than the sum of its proper divisors (1).

276440137 is an equidigital number, since it uses as much as digits as its factorization.

276440137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 276440137 is about 16626.4890160250. The cubic root of 276440137 is about 651.4289172101.

The spelling of 276440137 in words is "two hundred seventy-six million, four hundred forty thousand, one hundred thirty-seven".