45098 has 4 divisors (see below), whose sum is σ = 67650. Its totient is φ = 22548.

The previous prime is 45083. The next prime is 45119. The reversal of 45098 is 89054.

45098 is nontrivially palindromic in base 12.

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., 24649 + 20449 = 157^2 + 143^2 .

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

It is a Curzon number.

It is a nialpdrome in base 6.

It is an unprimeable number.

45098 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11273 + ... + 11276.

2⁴⁵⁰⁹⁸ is an apocalyptic number.

45098 is a deficient number, since it is larger than the sum of its proper divisors (22552).

45098 is a wasteful number, since it uses less digits than its factorization.

45098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22551.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 45098 is about 212.3628969477. The cubic root of 45098 is about 35.5947347345.

Subtracting 45098 from its reverse (89054), we obtain a triangular number (43956 = T₂₉₆).

It can be divided in two parts, 450 and 98, that multiplied together give a square (44100 = 210²).

The spelling of 45098 in words is "forty-five thousand, ninety-eight".