9120631 has 8 divisors (see below), whose sum is σ = 9933840. Its totient is φ = 8323392.

The previous prime is 9120623. The next prime is 9120641. The reversal of 9120631 is 1360219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9120631 - 2³ = 9120623 is a prime.

It is a super-2 number, since 2×9120631² = 166371819676322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9120641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2785 + ... + 5098.

It is an arithmetic number, because the mean of its divisors is an integer number (1241730).

Almost surely, 2^9120631 is an apocalyptic number.

9120631 is a deficient number, since it is larger than the sum of its proper divisors (813209).

9120631 is a wasteful number, since it uses less digits than its factorization.

9120631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 9120631 is about 3020.0382447909. The cubic root of 9120631 is about 208.9336037498.

The spelling of 9120631 in words is "nine million, one hundred twenty thousand, six hundred thirty-one".