4142221545 has 64 divisors (see below), whose sum is σ = 8322693120. Its totient is φ = 1708992000.

The previous prime is 4142221543. The next prime is 4142221571. The reversal of 4142221545 is 5451222414.

It is not a de Polignac number, because 4142221545 - 2¹ = 4142221543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4142221543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147645 + ... + 173445.

It is an arithmetic number, because the mean of its divisors is an integer number (130042080).

Almost surely, 2^4142221545 is an apocalyptic number.

It is an amenable number.

4142221545 is an abundant number, since it is smaller than the sum of its proper divisors (4180471575).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4142221545 is a wasteful number, since it uses less digits than its factorization.

4142221545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25966.

The product of its digits is 12800, while the sum is 30.

The square root of 4142221545 is about 64360.0927982550. The cubic root of 4142221545 is about 1605.9959327646.

Adding to 4142221545 its reverse (5451222414), we get a palindrome (9593443959).

The spelling of 4142221545 in words is "four billion, one hundred forty-two million, two hundred twenty-one thousand, five hundred forty-five".