276189913 has 2 divisors, whose sum is σ = 276189914. Its totient is φ = 276189912.

The previous prime is 276189889. The next prime is 276189917. The reversal of 276189913 is 319981672.

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., 217621504 + 58568409 = 14752^2 + 7653^2 .

It is a cyclic number.

It is not a de Polignac number, because 276189913 - 2¹⁷ = 276058841 is a prime.

It is not a weakly prime, because it can be changed into another prime (276189917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138094956 + 138094957.

It is an arithmetic number, because the mean of its divisors is an integer number (138094957).

Almost surely, 2^276189913 is an apocalyptic number.

It is an amenable number.

276189913 is a deficient number, since it is larger than the sum of its proper divisors (1).

276189913 is an equidigital number, since it uses as much as digits as its factorization.

276189913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 46.

The square root of 276189913 is about 16618.9624525721. The cubic root of 276189913 is about 651.2323076084.

The spelling of 276189913 in words is "two hundred seventy-six million, one hundred eighty-nine thousand, nine hundred thirteen".