276081091 has 16 divisors (see below), whose sum is σ = 325069920. Its totient is φ = 231160320.

The previous prime is 276081049. The next prime is 276081137. The reversal of 276081091 is 190180672.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 276081091 - 2⁹ = 276080579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (276081011) 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 in 15 ways as a sum of consecutive naturals, for example, 70891 + ... + 74683.

It is an arithmetic number, because the mean of its divisors is an integer number (20316870).

Almost surely, 2^276081091 is an apocalyptic number.

276081091 is a deficient number, since it is larger than the sum of its proper divisors (48988829).

276081091 is a wasteful number, since it uses less digits than its factorization.

276081091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 276081091 is about 16615.6880989022. The cubic root of 276081091 is about 651.1467653679.

The spelling of 276081091 in words is "two hundred seventy-six million, eighty-one thousand, ninety-one".