9131666 has 16 divisors (see below), whose sum is σ = 14666400. Its totient is φ = 4251168.

The previous prime is 9131663. The next prime is 9131687. The reversal of 9131666 is 6661319.

It is not an unprimeable number, because it can be changed into a prime (9131663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (916650).

Almost surely, 2^9131666 is an apocalyptic number.

9131666 is a deficient number, since it is larger than the sum of its proper divisors (5534734).

9131666 is a wasteful number, since it uses less digits than its factorization.

9131666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153.

The product of its digits is 5832, while the sum is 32.

The square root of 9131666 is about 3021.8646561353. The cubic root of 9131666 is about 209.0178323193.

The spelling of 9131666 in words is "nine million, one hundred thirty-one thousand, six hundred sixty-six".