9131965671 has 16 divisors (see below), whose sum is σ = 12509694848. Its totient is φ = 5921229600.

The previous prime is 9131965657. The next prime is 9131965673. The reversal of 9131965671 is 1765691319.

It is a happy number.

9131965671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9131965671 - 2¹⁹ = 9131441383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9131965671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9131965673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315936 + ... + 343626.

It is an arithmetic number, because the mean of its divisors is an integer number (781855928).

Almost surely, 2^9131965671 is an apocalyptic number.

9131965671 is a deficient number, since it is larger than the sum of its proper divisors (3377729177).

9131965671 is a wasteful number, since it uses less digits than its factorization.

9131965671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30702.

The product of its digits is 306180, while the sum is 48.

The square root of 9131965671 is about 95561.3189057162. The cubic root of 9131965671 is about 2090.2011871833.

The spelling of 9131965671 in words is "nine billion, one hundred thirty-one million, nine hundred sixty-five thousand, six hundred seventy-one".