73245 has 16 divisors (see below), whose sum is σ = 123840. Its totient is φ = 36864.

The previous prime is 73243. The next prime is 73259. The reversal of 73245 is 54237.

73245 = T₁₁₆ + T₁₁₇ + ... + T₁₂₅.

It is a happy number.

It is not a de Polignac number, because 73245 - 2¹ = 73243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157 + ... + 413.

It is an arithmetic number, because the mean of its divisors is an integer number (7740).

2⁷³²⁴⁵ is an apocalyptic number.

It is an amenable number.

73245 is a deficient number, since it is larger than the sum of its proper divisors (50595).

73245 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 73245 = (27453)₁₃.

73245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284.

The product of its digits is 840, while the sum is 21.

The square root of 73245 is about 270.6381347852. The cubic root of 73245 is about 41.8400949196.

It can be divided in two parts, 732 and 45, that added together give a palindrome (777).

The spelling of 73245 in words is "seventy-three thousand, two hundred forty-five".