9099010901 has 2 divisors, whose sum is σ = 9099010902. Its totient is φ = 9099010900.

The previous prime is 9099010897. The next prime is 9099010937. The reversal of 9099010901 is 1090109909.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8440831876 + 658179025 = 91874^2 + 25655^2 .

It is a cyclic number.

It is not a de Polignac number, because 9099010901 - 2² = 9099010897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9099010951) 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, 4549505450 + 4549505451.

It is an arithmetic number, because the mean of its divisors is an integer number (4549505451).

Almost surely, 2^9099010901 is an apocalyptic number.

It is an amenable number.

9099010901 is a deficient number, since it is larger than the sum of its proper divisors (1).

9099010901 is an equidigital number, since it uses as much as digits as its factorization.

9099010901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 38.

The square root of 9099010901 is about 95388.7357133954. The cubic root of 9099010901 is about 2087.6838348673.

The spelling of 9099010901 in words is "nine billion, ninety-nine million, ten thousand, nine hundred one".