4042532545145 has 16 divisors (see below), whose sum is σ = 4942648689552. Its totient is φ = 3172954936320.

The previous prime is 4042532545141. The next prime is 4042532545147. The reversal of 4042532545145 is 5415452352404.

It can be written as a sum of positive squares in 8 ways, for example, as 349048184809 + 3693484360336 = 590803^2 + 1921844^2 .

It is not a de Polignac number, because 4042532545145 - 2² = 4042532545141 is a prime.

It is a super-2 number, since 2×4042532545145² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4042532545096 and 4042532545105.

It is not an unprimeable number, because it can be changed into a prime (4042532545141) 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, 29006549 + ... + 29145581.

It is an arithmetic number, because the mean of its divisors is an integer number (308915543097).

Almost surely, 2^{4042532545145} is an apocalyptic number.

It is an amenable number.

4042532545145 is a deficient number, since it is larger than the sum of its proper divisors (900116144407).

4042532545145 is a wasteful number, since it uses less digits than its factorization.

4042532545145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248812.

The product of its (nonzero) digits is 1920000, while the sum is 44.

Adding to 4042532545145 its reverse (5415452352404), we get a palindrome (9457984897549).

The spelling of 4042532545145 in words is "four trillion, forty-two billion, five hundred thirty-two million, five hundred forty-five thousand, one hundred forty-five".