745031289 has 8 divisors (see below), whose sum is σ = 996570432. Its totient is φ = 495089840.

The previous prime is 745031281. The next prime is 745031293. The reversal of 745031289 is 982130547.

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 745031289 - 2³ = 745031281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745031281) 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, 398334 + ... + 400199.

It is an arithmetic number, because the mean of its divisors is an integer number (124571304).

Almost surely, 2^745031289 is an apocalyptic number.

It is an amenable number.

745031289 is a deficient number, since it is larger than the sum of its proper divisors (251539143).

745031289 is a wasteful number, since it uses less digits than its factorization.

745031289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798847.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 745031289 is about 27295.2612920265. The cubic root of 745031289 is about 906.5494610574.

The spelling of 745031289 in words is "seven hundred forty-five million, thirty-one thousand, two hundred eighty-nine".