9161331 has 4 divisors (see below), whose sum is σ = 12215112. Its totient is φ = 6107552.

The previous prime is 9161297. The next prime is 9161353. The reversal of 9161331 is 1331619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1331619 = 3 ⋅443873.

It is a cyclic number.

It is not a de Polignac number, because 9161331 - 2⁷ = 9161203 is a prime.

It is a super-2 number, since 2×9161331² = 167859971383122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9161371) 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 3 ways as a sum of consecutive naturals, for example, 1526886 + ... + 1526891.

It is an arithmetic number, because the mean of its divisors is an integer number (3053778).

Almost surely, 2^9161331 is an apocalyptic number.

9161331 is a deficient number, since it is larger than the sum of its proper divisors (3053781).

9161331 is a wasteful number, since it uses less digits than its factorization.

9161331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053780.

The product of its digits is 486, while the sum is 24.

The square root of 9161331 is about 3026.7690694865. The cubic root of 9161331 is about 209.2439251186.

The spelling of 9161331 in words is "nine million, one hundred sixty-one thousand, three hundred thirty-one".