745243943 has 8 divisors (see below), whose sum is σ = 816292080. Its totient is φ = 677219200.

The previous prime is 745243871. The next prime is 745243949. The reversal of 745243943 is 349342547.

745243943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 745243943 - 2¹⁴ = 745227559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745243943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745243949) 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, 755333 + ... + 756318.

It is an arithmetic number, because the mean of its divisors is an integer number (102036510).

Almost surely, 2^745243943 is an apocalyptic number.

745243943 is a deficient number, since it is larger than the sum of its proper divisors (71048137).

745243943 is a wasteful number, since it uses less digits than its factorization.

745243943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511697.

The product of its digits is 362880, while the sum is 41.

The square root of 745243943 is about 27299.1564521690. The cubic root of 745243943 is about 906.6357048761.

The spelling of 745243943 in words is "seven hundred forty-five million, two hundred forty-three thousand, nine hundred forty-three".