745265 has 4 divisors (see below), whose sum is σ = 894324. Its totient is φ = 596208.

The previous prime is 745249. The next prime is 745273. The reversal of 745265 is 562547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562547 = 17 ⋅33091.

It can be written as a sum of positive squares in 2 ways, for example, as 185761 + 559504 = 431^2 + 748^2 .

It is a cyclic number.

It is not a de Polignac number, because 745265 - 2⁴ = 745249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74522 + ... + 74531.

It is an arithmetic number, because the mean of its divisors is an integer number (223581).

2⁷⁴⁵²⁶⁵ is an apocalyptic number.

It is an amenable number.

745265 is a deficient number, since it is larger than the sum of its proper divisors (149059).

745265 is a wasteful number, since it uses less digits than its factorization.

745265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149058.

The product of its digits is 8400, while the sum is 29.

The square root of 745265 is about 863.2873218112. The cubic root of 745265 is about 90.6644243847.

The spelling of 745265 in words is "seven hundred forty-five thousand, two hundred sixty-five".