54142242145 has 16 divisors (see below), whose sum is σ = 65686763520. Its totient is φ = 42838920000.

The previous prime is 54142242137. The next prime is 54142242149. The reversal of 54142242145 is 54124224145.

It is not a de Polignac number, because 54142242145 - 2³ = 54142242137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54142242145.

It is not an unprimeable number, because it can be changed into a prime (54142242149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16320 + ... + 329470.

It is an arithmetic number, because the mean of its divisors is an integer number (4105422720).

Almost surely, 2^54142242145 is an apocalyptic number.

It is an amenable number.

54142242145 is a deficient number, since it is larger than the sum of its proper divisors (11544521375).

54142242145 is a wasteful number, since it uses less digits than its factorization.

54142242145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313536.

The product of its digits is 51200, while the sum is 34.

The spelling of 54142242145 in words is "fifty-four billion, one hundred forty-two million, two hundred forty-two thousand, one hundred forty-five".