745453 has 4 divisors (see below), whose sum is σ = 777888. Its totient is φ = 713020.

The previous prime is 745397. The next prime is 745471. The reversal of 745453 is 354547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354547 = 31 ⋅11437.

It is a cyclic number.

It is not a de Polignac number, because 745453 - 2⁹ = 744941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745753) 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, 16183 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (194472).

2⁷⁴⁵⁴⁵³ is an apocalyptic number.

It is an amenable number.

745453 is a deficient number, since it is larger than the sum of its proper divisors (32435).

745453 is a wasteful number, since it uses less digits than its factorization.

745453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32434.

The product of its digits is 8400, while the sum is 28.

The square root of 745453 is about 863.3962010572. The cubic root of 745453 is about 90.6720473907.

The spelling of 745453 in words is "seven hundred forty-five thousand, four hundred fifty-three".