131382743 has 4 divisors (see below), whose sum is σ = 135620928. Its totient is φ = 127144560.

The previous prime is 131382709. The next prime is 131382751. The reversal of 131382743 is 347283131.

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 131382743 - 2⁶ = 131382679 is a prime.

It is a super-2 number, since 2×131382743² = 34522850316408098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131382703) 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 3 ways as a sum of consecutive naturals, for example, 2119046 + ... + 2119107.

It is an arithmetic number, because the mean of its divisors is an integer number (33905232).

Almost surely, 2^131382743 is an apocalyptic number.

131382743 is a deficient number, since it is larger than the sum of its proper divisors (4238185).

131382743 is an equidigital number, since it uses as much as digits as its factorization.

131382743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238184.

The product of its digits is 12096, while the sum is 32.

The square root of 131382743 is about 11462.2311527905. The cubic root of 131382743 is about 508.3694470327.

The spelling of 131382743 in words is "one hundred thirty-one million, three hundred eighty-two thousand, seven hundred forty-three".