9967131 has 12 divisors (see below), whose sum is σ = 14930552. Its totient is φ = 6644592.

The previous prime is 9967129. The next prime is 9967147. The reversal of 9967131 is 1317699.

It is not a de Polignac number, because 9967131 - 2¹ = 9967129 is a prime.

It is a super-2 number, since 2×9967131² = 198687400742322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9967031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20266 + ... + 20751.

Almost surely, 2^9967131 is an apocalyptic number.

9967131 is a deficient number, since it is larger than the sum of its proper divisors (4963421).

9967131 is an equidigital number, since it uses as much as digits as its factorization.

9967131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41032 (or 41020 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 9967131 is about 3157.0763373729. The cubic root of 9967131 is about 215.2071628628.

The spelling of 9967131 in words is "nine million, nine hundred sixty-seven thousand, one hundred thirty-one".