545098 has 4 divisors (see below), whose sum is σ = 817650. Its totient is φ = 272548.

The previous prime is 545093. The next prime is 545117. The reversal of 545098 is 890545.

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

It can be written as a sum of positive squares in only one way, i.e., 339889 + 205209 = 583^2 + 453^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (545093) 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 as a sum of consecutive naturals, namely, 136273 + ... + 136276.

2⁵⁴⁵⁰⁹⁸ is an apocalyptic number.

545098 is a deficient number, since it is larger than the sum of its proper divisors (272552).

545098 is a wasteful number, since it uses less digits than its factorization.

545098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272551.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 545098 is about 738.3075240034. The cubic root of 545098 is about 81.6879873992.

The spelling of 545098 in words is "five hundred forty-five thousand, ninety-eight".