67545 has 24 divisors (see below), whose sum is σ = 124800. Its totient is φ = 33696.

The previous prime is 67537. The next prime is 67547. The reversal of 67545 is 54576.

It is not a de Polignac number, because 67545 - 2³ = 67537 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (67547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 816 + ... + 894.

It is an arithmetic number, because the mean of its divisors is an integer number (5200).

2⁶⁷⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

67545 is a deficient number, since it is larger than the sum of its proper divisors (57255).

67545 is a wasteful number, since it uses less digits than its factorization.

67545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 106 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 67545 is about 259.8942092468. The cubic root of 67545 is about 40.7253102977.

The spelling of 67545 in words is "sixty-seven thousand, five hundred forty-five".