131663743 has 4 divisors (see below), whose sum is σ = 131898168. Its totient is φ = 131429320.

The previous prime is 131663717. The next prime is 131663783. The reversal of 131663743 is 347366131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131663743 - 2¹⁷ = 131532671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131663699 and 131663708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131663783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116368 + ... + 117493.

It is an arithmetic number, because the mean of its divisors is an integer number (32974542).

Almost surely, 2^131663743 is an apocalyptic number.

131663743 is a deficient number, since it is larger than the sum of its proper divisors (234425).

131663743 is an equidigital number, since it uses as much as digits as its factorization.

131663743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234424.

The product of its digits is 27216, while the sum is 34.

The square root of 131663743 is about 11474.4822541150. The cubic root of 131663743 is about 508.7316206558.

The spelling of 131663743 in words is "one hundred thirty-one million, six hundred sixty-three thousand, seven hundred forty-three".