131216743 has 8 divisors (see below), whose sum is σ = 150861312. Its totient is φ = 111797016.

The previous prime is 131216741. The next prime is 131216759. The reversal of 131216743 is 347612131.

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 131216743 - 2¹ = 131216741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131216741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54955 + ... + 57292.

It is an arithmetic number, because the mean of its divisors is an integer number (18857664).

Almost surely, 2^131216743 is an apocalyptic number.

131216743 is a deficient number, since it is larger than the sum of its proper divisors (19644569).

131216743 is a wasteful number, since it uses less digits than its factorization.

131216743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112421.

The product of its digits is 3024, while the sum is 28.

The square root of 131216743 is about 11454.9876909580. The cubic root of 131216743 is about 508.1552512340.

Adding to 131216743 its reverse (347612131), we get a palindrome (478828874).

The spelling of 131216743 in words is "one hundred thirty-one million, two hundred sixteen thousand, seven hundred forty-three".