276433081 has 2 divisors, whose sum is σ = 276433082. Its totient is φ = 276433080.

The previous prime is 276433057. The next prime is 276433097. The reversal of 276433081 is 180334672.

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., 213627456 + 62805625 = 14616^2 + 7925^2 .

It is a cyclic number.

It is not a de Polignac number, because 276433081 - 2⁵ = 276433049 is a prime.

It is a super-2 number, since 2×276433081² = 152830496542305122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (276433181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138216540 + 138216541.

It is an arithmetic number, because the mean of its divisors is an integer number (138216541).

Almost surely, 2^276433081 is an apocalyptic number.

It is an amenable number.

276433081 is a deficient number, since it is larger than the sum of its proper divisors (1).

276433081 is an equidigital number, since it uses as much as digits as its factorization.

276433081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 276433081 is about 16626.2768231496. The cubic root of 276433081 is about 651.4233746943.

The spelling of 276433081 in words is "two hundred seventy-six million, four hundred thirty-three thousand, eighty-one".