276621013 has 2 divisors, whose sum is σ = 276621014. Its totient is φ = 276621012.

The previous prime is 276620983. The next prime is 276621043. The reversal of 276621013 is 310126672.

It is a balanced prime because it is at equal distance from previous prime (276620983) and next prime (276621043).

It can be written as a sum of positive squares in only one way, i.e., 266930244 + 9690769 = 16338^2 + 3113^2 .

It is a cyclic number.

It is not a de Polignac number, because 276621013 - 2¹³ = 276612821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276621043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138310506 + 138310507.

It is an arithmetic number, because the mean of its divisors is an integer number (138310507).

Almost surely, 2^276621013 is an apocalyptic number.

It is an amenable number.

276621013 is a deficient number, since it is larger than the sum of its proper divisors (1).

276621013 is an equidigital number, since it uses as much as digits as its factorization.

276621013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 276621013 is about 16631.9275190821. The cubic root of 276621013 is about 651.5709638379.

Adding to 276621013 its reverse (310126672), we get a palindrome (586747685).

The spelling of 276621013 in words is "two hundred seventy-six million, six hundred twenty-one thousand, thirteen".