2162171542 has 8 divisors (see below), whose sum is σ = 3243454632. Its totient is φ = 1081020000.

The previous prime is 2162171527. The next prime is 2162171563. The reversal of 2162171542 is 2451712612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47742 + ... + 81262.

It is an arithmetic number, because the mean of its divisors is an integer number (405431829).

Almost surely, 2^2162171542 is an apocalyptic number.

2162171542 is a deficient number, since it is larger than the sum of its proper divisors (1081283090).

2162171542 is a wasteful number, since it uses less digits than its factorization.

2162171542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65774.

The product of its digits is 6720, while the sum is 31.

The square root of 2162171542 is about 46499.1563579384. The cubic root of 2162171542 is about 1293.0938583224.

The spelling of 2162171542 in words is "two billion, one hundred sixty-two million, one hundred seventy-one thousand, five hundred forty-two".