54242145 has 24 divisors (see below), whose sum is σ = 94228992. Its totient is φ = 28864800.

The previous prime is 54242143. The next prime is 54242159. The reversal of 54242145 is 54124245.

It is not a de Polignac number, because 54242145 - 2¹ = 54242143 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 24640 + ... + 26750.

It is an arithmetic number, because the mean of its divisors is an integer number (3926208).

Almost surely, 2^54242145 is an apocalyptic number.

It is an amenable number.

54242145 is a deficient number, since it is larger than the sum of its proper divisors (39986847).

54242145 is a wasteful number, since it uses less digits than its factorization.

54242145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693 (or 2690 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 54242145 is about 7364.9266798794. The cubic root of 54242145 is about 378.5404421908.

It can be divided in two parts, 5424 and 2145, that added together give a square (7569 = 87²).

The spelling of 54242145 in words is "fifty-four million, two hundred forty-two thousand, one hundred forty-five".