276406513 has 2 divisors, whose sum is σ = 276406514. Its totient is φ = 276406512.

The previous prime is 276406489. The next prime is 276406523. The reversal of 276406513 is 315604672.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160478224 + 115928289 = 12668^2 + 10767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276406513 is a prime.

It is not a weakly prime, because it can be changed into another prime (276406523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138203256 + 138203257.

It is an arithmetic number, because the mean of its divisors is an integer number (138203257).

Almost surely, 2^276406513 is an apocalyptic number.

It is an amenable number.

276406513 is a deficient number, since it is larger than the sum of its proper divisors (1).

276406513 is an equidigital number, since it uses as much as digits as its factorization.

276406513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 276406513 is about 16625.4778277197. The cubic root of 276406513 is about 651.4025045791.

The spelling of 276406513 in words is "two hundred seventy-six million, four hundred six thousand, five hundred thirteen".