9131431142 has 16 divisors (see below), whose sum is σ = 13778865072. Its totient is φ = 4538556000.

The previous prime is 9131431123. The next prime is 9131431151. The reversal of 9131431142 is 2411341319.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 213017 + ... + 252267.

It is an arithmetic number, because the mean of its divisors is an integer number (861179067).

Almost surely, 2^9131431142 is an apocalyptic number.

9131431142 is a deficient number, since it is larger than the sum of its proper divisors (4647433930).

9131431142 is a wasteful number, since it uses less digits than its factorization.

9131431142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39943.

The product of its digits is 2592, while the sum is 29.

The square root of 9131431142 is about 95558.5220794043. The cubic root of 9131431142 is about 2090.1604038882.

The spelling of 9131431142 in words is "nine billion, one hundred thirty-one million, four hundred thirty-one thousand, one hundred forty-two".