It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34754 = 2 ⋅17377.
It is a cyclic number.
It is a Duffinian number.
It is a plaindrome in base 12.
It is a congruent number.
245743 is an apocalyptic number.
45743 is a wasteful number, since it uses less digits than its factorization.
45743 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 456.
The square root of 45743 is about 213.8761323757. The cubic root of 45743 is about 35.7636262790.
The spelling of 45743 in words is "forty-five thousand, seven hundred forty-three".