745215 has 8 divisors (see below), whose sum is σ = 1192368. Its totient is φ = 397440.

The previous prime is 745201. The next prime is 745231. The reversal of 745215 is 512547.

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

It is not a de Polignac number, because 745215 - 2⁸ = 744959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24826 + ... + 24855.

It is an arithmetic number, because the mean of its divisors is an integer number (149046).

2⁷⁴⁵²¹⁵ is an apocalyptic number.

745215 is a deficient number, since it is larger than the sum of its proper divisors (447153).

745215 is a wasteful number, since it uses less digits than its factorization.

745215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49689.

The product of its digits is 1400, while the sum is 24.

The square root of 745215 is about 863.2583622532. The cubic root of 745215 is about 90.6623967736.

The spelling of 745215 in words is "seven hundred forty-five thousand, two hundred fifteen".