745213 has 8 divisors (see below), whose sum is σ = 881280. Its totient is φ = 616560.

The previous prime is 745201. The next prime is 745231. The reversal of 745213 is 312547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 745213 - 2⁵ = 745181 is a prime.

It is a Duffinian number.

745213 is a lucky 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 7 ways as a sum of consecutive naturals, for example, 1633 + ... + 2038.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2⁷⁴⁵²¹³ is an apocalyptic number.

It is an amenable number.

745213 is a deficient number, since it is larger than the sum of its proper divisors (136067).

745213 is a wasteful number, since it uses less digits than its factorization.

745213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707.

The product of its digits is 840, while the sum is 22.

The square root of 745213 is about 863.2572038506. The cubic root of 745213 is about 90.6623156673.

The spelling of 745213 in words is "seven hundred forty-five thousand, two hundred thirteen".