545366 has 4 divisors (see below), whose sum is σ = 818052. Its totient is φ = 272682.

The previous prime is 545329. The next prime is 545371. The reversal of 545366 is 663545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 663545 = 5 ⋅132709.

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, 136340 + ... + 136343.

It is an arithmetic number, because the mean of its divisors is an integer number (204513).

2⁵⁴⁵³⁶⁶ is an apocalyptic number.

545366 is a deficient number, since it is larger than the sum of its proper divisors (272686).

545366 is a wasteful number, since it uses less digits than its factorization.

545366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272685.

The product of its digits is 10800, while the sum is 29.

The square root of 545366 is about 738.4889978869. The cubic root of 545366 is about 81.7013726338.

The spelling of 545366 in words is "five hundred forty-five thousand, three hundred sixty-six".