9120990206 has 4 divisors (see below), whose sum is σ = 13681485312. Its totient is φ = 4560495102.

The previous prime is 9120990199. The next prime is 9120990211. The reversal of 9120990206 is 6020990219.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 9120990206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2280247550 + ... + 2280247553.

It is an arithmetic number, because the mean of its divisors is an integer number (3420371328).

Almost surely, 2^9120990206 is an apocalyptic number.

9120990206 is a deficient number, since it is larger than the sum of its proper divisors (4560495106).

9120990206 is a wasteful number, since it uses less digits than its factorization.

9120990206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560495105.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 9120990206 is about 95503.8753454539. The cubic root of 9120990206 is about 2089.3634658705.

The spelling of 9120990206 in words is "nine billion, one hundred twenty million, nine hundred ninety thousand, two hundred six".