745137536 has 64 divisors (see below), whose sum is σ = 1744016400. Its totient is φ = 312637440.

The previous prime is 745137529. The next prime is 745137539. The reversal of 745137536 is 635731547.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 745137493 and 745137502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745137539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051 + ... + 38658.

Almost surely, 2^745137536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745137536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872008200).

745137536 is an abundant number, since it is smaller than the sum of its proper divisors (998878864).

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

745137536 is a wasteful number, since it uses less digits than its factorization.

745137536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40747 (or 40735 counting only the distinct ones).

The product of its digits is 264600, while the sum is 41.

The square root of 745137536 is about 27297.2074762236. The cubic root of 745137536 is about 906.5925525731.

The spelling of 745137536 in words is "seven hundred forty-five million, one hundred thirty-seven thousand, five hundred thirty-six".