2042144545 has 16 divisors (see below), whose sum is σ = 2801393280. Its totient is φ = 1399958784.

The previous prime is 2042144543. The next prime is 2042144557. The reversal of 2042144545 is 5454412402.

It is not a de Polignac number, because 2042144545 - 2¹ = 2042144543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2042144543) 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, 234886 + ... + 243424.

It is an arithmetic number, because the mean of its divisors is an integer number (175087080).

Almost surely, 2^2042144545 is an apocalyptic number.

It is an amenable number.

2042144545 is a deficient number, since it is larger than the sum of its proper divisors (759248735).

2042144545 is an equidigital number, since it uses as much as digits as its factorization.

2042144545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15384.

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 2042144545 is about 45190.0934387173. The cubic root of 2042144545 is about 1268.7094056430.

Adding to 2042144545 its reverse (5454412402), we get a palindrome (7496556947).

The spelling of 2042144545 in words is "two billion, forty-two million, one hundred forty-four thousand, five hundred forty-five".