54242149 has 8 divisors (see below), whose sum is σ = 58480632. Its totient is φ = 50013120.

The previous prime is 54242143. The next prime is 54242159. The reversal of 54242149 is 94124245.

It can be written as a sum of positive squares in 4 ways, for example, as 18122049 + 36120100 = 4257^2 + 6010^2 .

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 54242149 - 2³ = 54242141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54242149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54242141) 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, 13587 + ... + 17119.

It is an arithmetic number, because the mean of its divisors is an integer number (7310079).

Almost surely, 2^54242149 is an apocalyptic number.

It is an amenable number.

54242149 is a deficient number, since it is larger than the sum of its proper divisors (4238483).

54242149 is a wasteful number, since it uses less digits than its factorization.

54242149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727.

The product of its digits is 11520, while the sum is 31.

The square root of 54242149 is about 7364.9269514368. The cubic root of 54242149 is about 378.5404514957.

The spelling of 54242149 in words is "fifty-four million, two hundred forty-two thousand, one hundred forty-nine".