54240149 has 4 divisors (see below), whose sum is σ = 57430764. Its totient is φ = 51049536.

The previous prime is 54240143. The next prime is 54240161. The reversal of 54240149 is 94104245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28281124 + 25959025 = 5318^2 + 5095^2 .

It is a cyclic number.

It is not a de Polignac number, because 54240149 - 2⁴ = 54240133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54240143) 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, 1595282 + ... + 1595315.

It is an arithmetic number, because the mean of its divisors is an integer number (14357691).

Almost surely, 2^54240149 is an apocalyptic number.

It is an amenable number.

54240149 is a deficient number, since it is larger than the sum of its proper divisors (3190615).

54240149 is a wasteful number, since it uses less digits than its factorization.

54240149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190614.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 54240149 is about 7364.7911715133. The cubic root of 54240149 is about 378.5357989625.

The spelling of 54240149 in words is "fifty-four million, two hundred forty thousand, one hundred forty-nine".