276532231 has 2 divisors, whose sum is σ = 276532232. Its totient is φ = 276532230.

The previous prime is 276532199. The next prime is 276532253. The reversal of 276532231 is 132235672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276532231 - 2⁵ = 276532199 is a prime.

It is a super-2 number, since 2×276532231² = 152940149563674722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 276532193 and 276532202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276532261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138266115 + 138266116.

It is an arithmetic number, because the mean of its divisors is an integer number (138266116).

Almost surely, 2^276532231 is an apocalyptic number.

276532231 is a deficient number, since it is larger than the sum of its proper divisors (1).

276532231 is an equidigital number, since it uses as much as digits as its factorization.

276532231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 276532231 is about 16629.2582817154. The cubic root of 276532231 is about 651.5012487639.

The spelling of 276532231 in words is "two hundred seventy-six million, five hundred thirty-two thousand, two hundred thirty-one".