2042161522 has 4 divisors (see below), whose sum is σ = 3063242286. Its totient is φ = 1021080760.

The previous prime is 2042161507. The next prime is 2042161523. The reversal of 2042161522 is 2251612402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1831069681 + 211091841 = 42791^2 + 14529^2 .

It is not an unprimeable number, because it can be changed into a prime (2042161523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510540379 + ... + 510540382.

Almost surely, 2^2042161522 is an apocalyptic number.

2042161522 is a deficient number, since it is larger than the sum of its proper divisors (1021080764).

2042161522 is a wasteful number, since it uses less digits than its factorization.

2042161522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021080763.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2042161522 is about 45190.2812781687. The cubic root of 2042161522 is about 1268.7129213621.

Adding to 2042161522 its reverse (2251612402), we get a palindrome (4293773924).

The spelling of 2042161522 in words is "two billion, forty-two million, one hundred sixty-one thousand, five hundred twenty-two".