91082003 has 2 divisors, whose sum is σ = 91082004. Its totient is φ = 91082002.

The previous prime is 91081997. The next prime is 91082009. The reversal of 91082003 is 30028019.

It is a balanced prime because it is at equal distance from previous prime (91081997) and next prime (91082009).

It is a cyclic number.

It is not a de Polignac number, because 91082003 - 2²⁴ = 74304787 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91082003.

It is not a weakly prime, because it can be changed into another prime (91082009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45541001 + 45541002.

It is an arithmetic number, because the mean of its divisors is an integer number (45541002).

Almost surely, 2^91082003 is an apocalyptic number.

91082003 is a deficient number, since it is larger than the sum of its proper divisors (1).

91082003 is an equidigital number, since it uses as much as digits as its factorization.

91082003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 91082003 is about 9543.6891713844. The cubic root of 91082003 is about 449.9292119104.

It can be divided in two parts, 9108 and 2003, that added together give a palindrome (11111).

The spelling of 91082003 in words is "ninety-one million, eighty-two thousand, three".