9120901 has 4 divisors (see below), whose sum is σ = 9343404. Its totient is φ = 8898400.

The previous prime is 9120889. The next prime is 9120941. The reversal of 9120901 is 1090219.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4601025 + 4519876 = 2145^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 9120901 - 2¹¹ = 9118853 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9120941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111190 + ... + 111271.

It is an arithmetic number, because the mean of its divisors is an integer number (2335851).

Almost surely, 2^9120901 is an apocalyptic number.

It is an amenable number.

9120901 is a deficient number, since it is larger than the sum of its proper divisors (222503).

9120901 is a wasteful number, since it uses less digits than its factorization.

9120901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222502.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 9120901 is about 3020.0829458808. The cubic root of 9120901 is about 208.9356654316.

The spelling of 9120901 in words is "nine million, one hundred twenty thousand, nine hundred one".