745138597 has 8 divisors (see below), whose sum is σ = 874603136. Its totient is φ = 621428112.

The previous prime is 745138579. The next prime is 745138609. The reversal of 745138597 is 795831547.

It is a happy number.

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 745138597 - 2¹¹ = 745136549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745138597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745138547) 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, 1438233 + ... + 1438750.

It is an arithmetic number, because the mean of its divisors is an integer number (109325392).

Almost surely, 2^745138597 is an apocalyptic number.

It is an amenable number.

745138597 is a deficient number, since it is larger than the sum of its proper divisors (129464539).

745138597 is a wasteful number, since it uses less digits than its factorization.

745138597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877027.

The product of its digits is 1058400, while the sum is 49.

The square root of 745138597 is about 27297.2269104391. The cubic root of 745138597 is about 906.5929828714.

The spelling of 745138597 in words is "seven hundred forty-five million, one hundred thirty-eight thousand, five hundred ninety-seven".