45049 has 4 divisors (see below), whose sum is σ = 47440. Its totient is φ = 42660.

The previous prime is 45013. The next prime is 45053. The reversal of 45049 is 94054.

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 45049 - 2⁹ = 44537 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a nialpdrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (45949) 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, 1167 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (11860).

2⁴⁵⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

45049 is a deficient number, since it is larger than the sum of its proper divisors (2391).

45049 is a wasteful number, since it uses less digits than its factorization.

45049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 45049 is about 212.2474970406. The cubic root of 45049 is about 35.5818385671.

The spelling of 45049 in words is "forty-five thousand, forty-nine".