9091908101 has 12 divisors (see below), whose sum is σ = 9615830400. Its totient is φ = 8595241128.

The previous prime is 9091908061. The next prime is 9091908103. The reversal of 9091908101 is 1018091909.

It is a happy number.

It is not a de Polignac number, because 9091908101 - 2⁶ = 9091908037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9091908103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146630 + ... + 199208.

It is an arithmetic number, because the mean of its divisors is an integer number (801319200).

Almost surely, 2^9091908101 is an apocalyptic number.

It is an amenable number.

9091908101 is a deficient number, since it is larger than the sum of its proper divisors (523922299).

9091908101 is a wasteful number, since it uses less digits than its factorization.

9091908101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53096 (or 53077 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 38.

The square root of 9091908101 is about 95351.4976337551. The cubic root of 9091908101 is about 2087.1404695504.

The spelling of 9091908101 in words is "nine billion, ninety-one million, nine hundred eight thousand, one hundred one".