911080091 has 2 divisors, whose sum is σ = 911080092. Its totient is φ = 911080090.

The previous prime is 911080073. The next prime is 911080141. The reversal of 911080091 is 190080119.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 911080091 - 2²² = 906885787 is a prime.

It is a super-4 number, since 4×911080091⁴ (a number of 37 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (911086091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455540045 + 455540046.

It is an arithmetic number, because the mean of its divisors is an integer number (455540046).

Almost surely, 2^911080091 is an apocalyptic number.

911080091 is a deficient number, since it is larger than the sum of its proper divisors (1).

911080091 is an equidigital number, since it uses as much as digits as its factorization.

911080091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 911080091 is about 30184.1032830197. The cubic root of 911080091 is about 969.4353503337.

The spelling of 911080091 in words is "nine hundred eleven million, eighty thousand, ninety-one".