2160542047 has 4 divisors (see below), whose sum is σ = 2160796176. Its totient is φ = 2160287920.

The previous prime is 2160542039. The next prime is 2160542077. The reversal of 2160542047 is 7402450612.

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

It is a cyclic number.

It is not a de Polignac number, because 2160542047 - 2³ = 2160542039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160542077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113854 + ... + 131467.

It is an arithmetic number, because the mean of its divisors is an integer number (540199044).

Almost surely, 2^2160542047 is an apocalyptic number.

2160542047 is a deficient number, since it is larger than the sum of its proper divisors (254129).

2160542047 is an equidigital number, since it uses as much as digits as its factorization.

2160542047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254128.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2160542047 is about 46481.6312859177. The cubic root of 2160542047 is about 1292.7689350551.

Adding to 2160542047 its reverse (7402450612), we get a palindrome (9562992659).

The spelling of 2160542047 in words is "two billion, one hundred sixty million, five hundred forty-two thousand, forty-seven".