545966 has 4 divisors (see below), whose sum is σ = 818952. Its totient is φ = 272982.

The previous prime is 545959. The next prime is 546001. The reversal of 545966 is 669545.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136490 + ... + 136493.

It is an arithmetic number, because the mean of its divisors is an integer number (204738).

2⁵⁴⁵⁹⁶⁶ is an apocalyptic number.

545966 is a deficient number, since it is larger than the sum of its proper divisors (272986).

545966 is a wasteful number, since it uses less digits than its factorization.

545966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272985.

The product of its digits is 32400, while the sum is 35.

The square root of 545966 is about 738.8951211099. The cubic root of 545966 is about 81.7313236864.

The spelling of 545966 in words is "five hundred forty-five thousand, nine hundred sixty-six".