276971231 has 2 divisors, whose sum is σ = 276971232. Its totient is φ = 276971230.

The previous prime is 276971203. The next prime is 276971237. The reversal of 276971231 is 132179672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276971231 - 2¹⁰ = 276970207 is a prime.

It is a super-2 number, since 2×276971231² = 153426125603310722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276971237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138485615 + 138485616.

It is an arithmetic number, because the mean of its divisors is an integer number (138485616).

Almost surely, 2^276971231 is an apocalyptic number.

276971231 is a deficient number, since it is larger than the sum of its proper divisors (1).

276971231 is an equidigital number, since it uses as much as digits as its factorization.

276971231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 276971231 is about 16642.4526738098. The cubic root of 276971231 is about 651.8458232249.

The spelling of 276971231 in words is "two hundred seventy-six million, nine hundred seventy-one thousand, two hundred thirty-one".