9009131 has 4 divisors (see below), whose sum is σ = 9066672. Its totient is φ = 8951592.

The previous prime is 9009107. The next prime is 9009157. The reversal of 9009131 is 1319009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1319009 = 109 ⋅12101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9009131 is a prime.

It is a super-2 number, since 2×9009131² = 162328882750322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9009097 and 9009106.

It is not an unprimeable number, because it can be changed into a prime (9009191) 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, 28535 + ... + 28848.

It is an arithmetic number, because the mean of its divisors is an integer number (2266668).

Almost surely, 2^9009131 is an apocalyptic number.

9009131 is a deficient number, since it is larger than the sum of its proper divisors (57541).

9009131 is a wasteful number, since it uses less digits than its factorization.

9009131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57540.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 9009131 is about 3001.5214475329. The cubic root of 9009131 is about 208.0787038821.

The spelling of 9009131 in words is "nine million, nine thousand, one hundred thirty-one".