971131 has 6 divisors (see below), whose sum is σ = 1129740. Its totient is φ = 832356.

The previous prime is 971111. The next prime is 971141. The reversal of 971131 is 131179.

It is not a de Polignac number, because 971131 - 2⁵ = 971099 is a prime.

It is a super-2 number, since 2×971131² = 1886190838322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971111) 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 5 ways as a sum of consecutive naturals, for example, 9861 + ... + 9958.

It is an arithmetic number, because the mean of its divisors is an integer number (188290).

2⁹⁷¹¹³¹ is an apocalyptic number.

971131 is a deficient number, since it is larger than the sum of its proper divisors (158609).

971131 is a wasteful number, since it uses less digits than its factorization.

971131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19833 (or 19826 counting only the distinct ones).

The product of its digits is 189, while the sum is 22.

The square root of 971131 is about 985.4597911635. The cubic root of 971131 is about 99.0282883484.

The spelling of 971131 in words is "nine hundred seventy-one thousand, one hundred thirty-one".