745168043 has 4 divisors (see below), whose sum is σ = 747244080. Its totient is φ = 743092008.

The previous prime is 745168031. The next prime is 745168051. The reversal of 745168043 is 340861547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340861547 = 13 ⋅26220119.

It is a cyclic number.

It is not a de Polignac number, because 745168043 - 2¹⁰ = 745167019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745167988 and 745168006.

It is not an unprimeable number, because it can be changed into a prime (745168003) 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, 1037480 + ... + 1038197.

It is an arithmetic number, because the mean of its divisors is an integer number (186811020).

Almost surely, 2^745168043 is an apocalyptic number.

745168043 is a deficient number, since it is larger than the sum of its proper divisors (2076037).

745168043 is a wasteful number, since it uses less digits than its factorization.

745168043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076036.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 745168043 is about 27297.7662639272. The cubic root of 745168043 is about 906.6049248043.

The spelling of 745168043 in words is "seven hundred forty-five million, one hundred sixty-eight thousand, forty-three".