745334531 has 4 divisors (see below), whose sum is σ = 763513464. Its totient is φ = 727155600.

The previous prime is 745334477. The next prime is 745334593. The reversal of 745334531 is 135433547.

745334531 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, and also an emirpimes, since its reverse is a distinct semiprime: 135433547 = 601 ⋅225347.

It is a cyclic number.

It is not a de Polignac number, because 745334531 - 2¹⁰ = 745333507 is a prime.

It is a super-2 number, since 2×745334531² = 1111047126201979922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745334491 and 745334500.

It is not an unprimeable number, because it can be changed into a prime (745334231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9089405 + ... + 9089486.

It is an arithmetic number, because the mean of its divisors is an integer number (190878366).

Almost surely, 2^745334531 is an apocalyptic number.

745334531 is a deficient number, since it is larger than the sum of its proper divisors (18178933).

745334531 is a wasteful number, since it uses less digits than its factorization.

745334531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18178932.

The product of its digits is 75600, while the sum is 35.

The square root of 745334531 is about 27300.8155738982. The cubic root of 745334531 is about 906.6724387038.

The spelling of 745334531 in words is "seven hundred forty-five million, three hundred thirty-four thousand, five hundred thirty-one".