745253 has 4 divisors (see below), whose sum is σ = 747948. Its totient is φ = 742560.

The previous prime is 745249. The next prime is 745273. The reversal of 745253 is 352547.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2209 + 743044 = 47^2 + 862^2 .

It is a cyclic number.

It is not a de Polignac number, because 745253 - 2² = 745249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745243) 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, 878 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (186987).

2⁷⁴⁵²⁵³ is an apocalyptic number.

It is an amenable number.

745253 is a deficient number, since it is larger than the sum of its proper divisors (2695).

745253 is a wasteful number, since it uses less digits than its factorization.

745253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694.

The product of its digits is 4200, while the sum is 26.

The square root of 745253 is about 863.2803716059. The cubic root of 745253 is about 90.6639377663.

The spelling of 745253 in words is "seven hundred forty-five thousand, two hundred fifty-three".