545439743 has 4 divisors (see below), whose sum is σ = 564248040. Its totient is φ = 526631448.

The previous prime is 545439701. The next prime is 545439751. The reversal of 545439743 is 347934545.

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 545439743 - 2¹² = 545435647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545439694 and 545439703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545439443) 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, 9404105 + ... + 9404162.

It is an arithmetic number, because the mean of its divisors is an integer number (141062010).

Almost surely, 2^545439743 is an apocalyptic number.

545439743 is a deficient number, since it is larger than the sum of its proper divisors (18808297).

545439743 is a wasteful number, since it uses less digits than its factorization.

545439743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18808296.

The product of its digits is 907200, while the sum is 44.

The square root of 545439743 is about 23354.6514210767. The cubic root of 545439743 is about 817.0505495156.

The spelling of 545439743 in words is "five hundred forty-five million, four hundred thirty-nine thousand, seven hundred forty-three".