276840131 has 2 divisors, whose sum is σ = 276840132. Its totient is φ = 276840130.

The previous prime is 276840103. The next prime is 276840133. The reversal of 276840131 is 131048672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276840131 - 2²⁶ = 209731267 is a prime.

It is a super-2 number, since 2×276840131² = 153280916264194322, which contains 22 as substring.

Together with 276840133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (276840133) 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, 138420065 + 138420066.

It is an arithmetic number, because the mean of its divisors is an integer number (138420066).

Almost surely, 2^276840131 is an apocalyptic number.

276840131 is a deficient number, since it is larger than the sum of its proper divisors (1).

276840131 is an equidigital number, since it uses as much as digits as its factorization.

276840131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 276840131 is about 16638.5134852847. The cubic root of 276840131 is about 651.7429599854.

The spelling of 276840131 in words is "two hundred seventy-six million, eight hundred forty thousand, one hundred thirty-one".