131322743 has 8 divisors (see below), whose sum is σ = 132920688. Its totient is φ = 129734784.

The previous prime is 131322733. The next prime is 131322749. The reversal of 131322743 is 347223131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131322743 - 2⁶ = 131322679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131322749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25871 + ... + 30527.

It is an arithmetic number, because the mean of its divisors is an integer number (16615086).

Almost surely, 2^131322743 is an apocalyptic number.

131322743 is a deficient number, since it is larger than the sum of its proper divisors (1597945).

131322743 is a wasteful number, since it uses less digits than its factorization.

131322743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993.

The product of its digits is 3024, while the sum is 26.

The square root of 131322743 is about 11459.6135624200. The cubic root of 131322743 is about 508.2920476966.

Adding to 131322743 its reverse (347223131), we get a palindrome (478545874).

The spelling of 131322743 in words is "one hundred thirty-one million, three hundred twenty-two thousand, seven hundred forty-three".