745203 has 4 divisors (see below), whose sum is σ = 993608. Its totient is φ = 496800.

The previous prime is 745201. The next prime is 745231. The reversal of 745203 is 302547.

It is a happy number.

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

It is not a de Polignac number, because 745203 - 2¹ = 745201 is a prime.

It is a super-2 number, since 2×745203² = 1110655022418, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745203.

It is not an unprimeable number, because it can be changed into a prime (745201) 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, 124198 + ... + 124203.

It is an arithmetic number, because the mean of its divisors is an integer number (248402).

2⁷⁴⁵²⁰³ is an apocalyptic number.

745203 is a deficient number, since it is larger than the sum of its proper divisors (248405).

745203 is a wasteful number, since it uses less digits than its factorization.

745203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248404.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 745203 is about 863.2514118147. The cubic root of 745203 is about 90.6619101335.

The spelling of 745203 in words is "seven hundred forty-five thousand, two hundred three".