45249 has 4 divisors (see below), whose sum is σ = 60336. Its totient is φ = 30164.

The previous prime is 45247. The next prime is 45259. The reversal of 45249 is 94254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45249 - 2¹ = 45247 is a prime.

It is a D-number.

It is a Curzon number.

It is a plaindrome in base 12 and base 13.

It is not an unprimeable number, because it can be changed into a prime (45247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7539 + ... + 7544.

It is an arithmetic number, because the mean of its divisors is an integer number (15084).

2⁴⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

45249 is a deficient number, since it is larger than the sum of its proper divisors (15087).

45249 is a wasteful number, since it uses less digits than its factorization.

45249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15086.

The product of its digits is 1440, while the sum is 24.

The square root of 45249 is about 212.7181233464. The cubic root of 45249 is about 35.6344173318.

It can be divided in two parts, 4 and 5249, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 45249 in words is "forty-five thousand, two hundred forty-nine".