54149 has 4 divisors (see below), whose sum is σ = 54636. Its totient is φ = 53664.

The previous prime is 54139. The next prime is 54151. The reversal of 54149 is 94145.

It is a happy number.

54149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 21025 + 33124 = 145^2 + 182^2 .

It is a cyclic number.

It is not a de Polignac number, because 54149 - 2⁴ = 54133 is a prime.

It is a super-2 number, since 2×54149² = 5864228402, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54139) 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, 17 + ... + 329.

It is an arithmetic number, because the mean of its divisors is an integer number (13659).

2⁵⁴¹⁴⁹ is an apocalyptic number.

It is an amenable number.

54149 is a deficient number, since it is larger than the sum of its proper divisors (487).

54149 is a wasteful number, since it uses less digits than its factorization.

54149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

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

The square root of 54149 is about 232.6993768793. The cubic root of 54149 is about 37.8323640593.

The spelling of 54149 in words is "fifty-four thousand, one hundred forty-nine".