2005541142 has 16 divisors (see below), whose sum is σ = 4375726272. Its totient is φ = 607739720.

The previous prime is 2005541137. The next prime is 2005541159. The reversal of 2005541142 is 2411455002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15193428 + ... + 15193559.

It is an arithmetic number, because the mean of its divisors is an integer number (273482892).

Almost surely, 2^2005541142 is an apocalyptic number.

2005541142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2005541142 is an abundant number, since it is smaller than the sum of its proper divisors (2370185130).

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

2005541142 is a wasteful number, since it uses less digits than its factorization.

2005541142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30387003.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2005541142 is about 44783.2685497609. The cubic root of 2005541142 is about 1261.0835438720.

Adding to 2005541142 its reverse (2411455002), we get a palindrome (4416996144).

The spelling of 2005541142 in words is "two billion, five million, five hundred forty-one thousand, one hundred forty-two".