745073545 has 4 divisors (see below), whose sum is σ = 894088260. Its totient is φ = 596058832.

The previous prime is 745073531. The next prime is 745073611. The reversal of 745073545 is 545370547.

745073545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 563255289 + 181818256 = 23733^2 + 13484^2 .

It is a cyclic number.

It is not a de Polignac number, because 745073545 - 2¹¹ = 745071497 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 745073498 and 745073507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74507350 + ... + 74507359.

It is an arithmetic number, because the mean of its divisors is an integer number (223522065).

Almost surely, 2^745073545 is an apocalyptic number.

It is an amenable number.

745073545 is a deficient number, since it is larger than the sum of its proper divisors (149014715).

745073545 is a wasteful number, since it uses less digits than its factorization.

745073545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149014714.

The product of its (nonzero) digits is 294000, while the sum is 40.

The square root of 745073545 is about 27296.0353348247. The cubic root of 745073545 is about 906.5665996799.

The spelling of 745073545 in words is "seven hundred forty-five million, seventy-three thousand, five hundred forty-five".