276065213 has 2 divisors, whose sum is σ = 276065214. Its totient is φ = 276065212.

The previous prime is 276065197. The next prime is 276065249. The reversal of 276065213 is 312560672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254785444 + 21279769 = 15962^2 + 4613^2 .

It is a cyclic number.

It is not a de Polignac number, because 276065213 - 2⁴ = 276065197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 276065213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276061213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138032606 + 138032607.

It is an arithmetic number, because the mean of its divisors is an integer number (138032607).

Almost surely, 2^276065213 is an apocalyptic number.

It is an amenable number.

276065213 is a deficient number, since it is larger than the sum of its proper divisors (1).

276065213 is an equidigital number, since it uses as much as digits as its factorization.

276065213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 276065213 is about 16615.2102905741. The cubic root of 276065213 is about 651.1342821919.

The spelling of 276065213 in words is "two hundred seventy-six million, sixty-five thousand, two hundred thirteen".