745543575 has 72 divisors (see below), whose sum is σ = 1593268560. Its totient is φ = 340804800.

The previous prime is 745543573. The next prime is 745543613. The reversal of 745543575 is 575345547.

It is a happy number.

745543575 is a `hidden beast` number, since 74 + 5 + 5 + 4 + 3 + 575 = 666.

745543575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 745543575 - 2¹ = 745543573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 745543575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745543573) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21805 + ... + 44345.

It is an arithmetic number, because the mean of its divisors is an integer number (22128730).

Almost surely, 2^745543575 is an apocalyptic number.

745543575 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

745543575 is an abundant number, since it is smaller than the sum of its proper divisors (847724985).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745543575 is a wasteful number, since it uses less digits than its factorization.

745543575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22574 (or 22556 counting only the distinct ones).

The product of its digits is 1470000, while the sum is 45.

The square root of 745543575 is about 27304.6438358020. The cubic root of 745543575 is about 906.7571955964.

The spelling of 745543575 in words is "seven hundred forty-five million, five hundred forty-three thousand, five hundred seventy-five".