83481091 has 2 divisors, whose sum is σ = 83481092. Its totient is φ = 83481090.

The previous prime is 83481049. The next prime is 83481127. The reversal of 83481091 is 19018438.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83481091 - 2⁷ = 83480963 is a prime.

It is not a weakly prime, because it can be changed into another prime (83481031) 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, 41740545 + 41740546.

It is an arithmetic number, because the mean of its divisors is an integer number (41740546).

Almost surely, 2^83481091 is an apocalyptic number.

83481091 is a deficient number, since it is larger than the sum of its proper divisors (1).

83481091 is an equidigital number, since it uses as much as digits as its factorization.

83481091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 83481091 is about 9136.7987282199. The cubic root of 83481091 is about 437.0482363621.

The spelling of 83481091 in words is "eighty-three million, four hundred eighty-one thousand, ninety-one".