74245 has 8 divisors (see below), whose sum is σ = 92160. Its totient is φ = 57360.

The previous prime is 74231. The next prime is 74257. The reversal of 74245 is 54247.

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

It is a de Polignac number, because none of the positive numbers 2^k-74245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85 + ... + 394.

It is an arithmetic number, because the mean of its divisors is an integer number (11520).

2⁷⁴²⁴⁵ is an apocalyptic number.

It is an amenable number.

74245 is a deficient number, since it is larger than the sum of its proper divisors (17915).

74245 is a wasteful number, since it uses less digits than its factorization.

74245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515.

The product of its digits is 1120, while the sum is 22.

The square root of 74245 is about 272.4793570163. The cubic root of 74245 is about 42.0296464911.

It can be divided in two parts, 742 and 45, that added together give a palindrome (787).

The spelling of 74245 in words is "seventy-four thousand, two hundred forty-five".