131143796 has 36 divisors (see below), whose sum is σ = 267821568. Its totient is φ = 56025648.

The previous prime is 131143741. The next prime is 131143807. The reversal of 131143796 is 697341131.

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 11 ways as a sum of consecutive naturals, for example, 74195 + ... + 75941.

It is an arithmetic number, because the mean of its divisors is an integer number (7439488).

Almost surely, 2^131143796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131143796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133910784).

131143796 is an abundant number, since it is smaller than the sum of its proper divisors (136677772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131143796 is a wasteful number, since it uses less digits than its factorization.

131143796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148 (or 2139 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 131143796 is about 11451.8031767927. The cubic root of 131143796 is about 508.0610679474.

The spelling of 131143796 in words is "one hundred thirty-one million, one hundred forty-three thousand, seven hundred ninety-six".