545378 has 8 divisors (see below), whose sum is σ = 821340. Its totient is φ = 271600.

The previous prime is 545371. The next prime is 545387. The reversal of 545378 is 873545.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 543169 + 2209 = 737^2 + 47^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428 + ... + 1128.

2⁵⁴⁵³⁷⁸ is an apocalyptic number.

545378 is a deficient number, since it is larger than the sum of its proper divisors (275962).

545378 is a wasteful number, since it uses less digits than its factorization.

545378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092.

The product of its digits is 16800, while the sum is 32.

The square root of 545378 is about 738.4971225401. The cubic root of 545378 is about 81.7019718700.

It can be divided in two parts, 54537 and 8, that added together give a palindrome (54545).

The spelling of 545378 in words is "five hundred forty-five thousand, three hundred seventy-eight".