745323547 has 4 divisors (see below), whose sum is σ = 745461360. Its totient is φ = 745185736.

The previous prime is 745323497. The next prime is 745323569.

745323547 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 745323547 - 2⁷ = 745323419 is a prime.

It is a super-2 number, since 2×745323547² = 1111014379425322418, which contains 22 as substring.

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 Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745320547) 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, 60448 + ... + 71725.

It is an arithmetic number, because the mean of its divisors is an integer number (186365340).

Almost surely, 2^745323547 is an apocalyptic number.

745323547 is a deficient number, since it is larger than the sum of its proper divisors (137813).

745323547 is a wasteful number, since it uses less digits than its factorization.

745323547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137812.

The product of its digits is 352800, while the sum is 40.

The square root of 745323547 is about 27300.6144070056. The cubic root of 745323547 is about 906.6679848026.

The spelling of 745323547 in words is "seven hundred forty-five million, three hundred twenty-three thousand, five hundred forty-seven".