75173 has 4 divisors (see below), whose sum is σ = 85920. Its totient is φ = 64428.

The previous prime is 75169. The next prime is 75181. The reversal of 75173 is 37157.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37157 = 73 ⋅509.

It is not a de Polignac number, because 75173 - 2² = 75169 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75133) 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, 5363 + ... + 5376.

It is an arithmetic number, because the mean of its divisors is an integer number (21480).

2⁷⁵¹⁷³ is an apocalyptic number.

It is an amenable number.

75173 is a deficient number, since it is larger than the sum of its proper divisors (10747).

75173 is a wasteful number, since it uses less digits than its factorization.

75173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10746.

The product of its digits is 735, while the sum is 23.

The square root of 75173 is about 274.1769501618. The cubic root of 75173 is about 42.2040336658.

The spelling of 75173 in words is "seventy-five thousand, one hundred seventy-three".