45149 has 8 divisors (see below), whose sum is σ = 51072. Its totient is φ = 39600.

The previous prime is 45139. The next prime is 45161. The reversal of 45149 is 94154.

It is a happy number.

45149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 45149 - 2⁸ = 44893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 45149.

It is not an unprimeable number, because it can be changed into a prime (45119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224 + ... + 374.

It is an arithmetic number, because the mean of its divisors is an integer number (6384).

2⁴⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

45149 is a deficient number, since it is larger than the sum of its proper divisors (5923).

45149 is a wasteful number, since it uses less digits than its factorization.

45149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 720, while the sum is 23.

The square root of 45149 is about 212.4829404917. The cubic root of 45149 is about 35.6081473588.

The spelling of 45149 in words is "forty-five thousand, one hundred forty-nine".