745043 has 8 divisors (see below), whose sum is σ = 809088. Its totient is φ = 681984.

The previous prime is 745037. The next prime is 745051. The reversal of 745043 is 340547.

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 745043 - 2⁴ = 745027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745013) 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, 2771 + ... + 3027.

It is an arithmetic number, because the mean of its divisors is an integer number (101136).

2⁷⁴⁵⁰⁴³ is an apocalyptic number.

745043 is a deficient number, since it is larger than the sum of its proper divisors (64045).

745043 is a wasteful number, since it uses less digits than its factorization.

745043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 745043 is about 863.1587339534. The cubic root of 745043 is about 90.6554210990.

Subtracting from 745043 its reverse (340547), we obtain a square (404496 = 636²).

The spelling of 745043 in words is "seven hundred forty-five thousand, forty-three".