9149906 has 32 divisors (see below), whose sum is σ = 15638400. Its totient is φ = 4002768.

The previous prime is 9149873. The next prime is 9149909. The reversal of 9149906 is 6099419.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 9149906.

It is not an unprimeable number, because it can be changed into a prime (9149909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315500 + ... + 315528.

It is an arithmetic number, because the mean of its divisors is an integer number (488700).

Almost surely, 2^9149906 is an apocalyptic number.

9149906 is a deficient number, since it is larger than the sum of its proper divisors (6488494).

9149906 is a wasteful number, since it uses less digits than its factorization.

9149906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 73 counting only the distinct ones).

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

The square root of 9149906 is about 3024.8811546902. The cubic root of 9149906 is about 209.1569069658.

The spelling of 9149906 in words is "nine million, one hundred forty-nine thousand, nine hundred six".