75345 has 8 divisors (see below), whose sum is σ = 120576. Its totient is φ = 40176.

The previous prime is 75337. The next prime is 75347. The reversal of 75345 is 54357.

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

It is not a de Polignac number, because 75345 - 2³ = 75337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2497 + ... + 2526.

It is an arithmetic number, because the mean of its divisors is an integer number (15072).

2⁷⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

75345 is a deficient number, since it is larger than the sum of its proper divisors (45231).

75345 is a wasteful number, since it uses less digits than its factorization.

75345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031.

The product of its digits is 2100, while the sum is 24.

The square root of 75345 is about 274.4904369919. The cubic root of 75345 is about 42.2361975385.

The spelling of 75345 in words is "seventy-five thousand, three hundred forty-five".