2162191539 has 16 divisors (see below), whose sum is σ = 2957187744. Its totient is φ = 1404422400.

The previous prime is 2162191519. The next prime is 2162191547. The reversal of 2162191539 is 9351912612.

It is not a de Polignac number, because 2162191539 - 2⁷ = 2162191411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2162191497 and 2162191506.

It is not an unprimeable number, because it can be changed into a prime (2162191519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83709 + ... + 106449.

It is an arithmetic number, because the mean of its divisors is an integer number (184824234).

Almost surely, 2^2162191539 is an apocalyptic number.

2162191539 is a deficient number, since it is larger than the sum of its proper divisors (794996205).

2162191539 is a wasteful number, since it uses less digits than its factorization.

2162191539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23558.

The product of its digits is 29160, while the sum is 39.

The square root of 2162191539 is about 46499.3713828477. The cubic root of 2162191539 is about 1293.0978447342.

The spelling of 2162191539 in words is "two billion, one hundred sixty-two million, one hundred ninety-one thousand, five hundred thirty-nine".