2162137247 has 4 divisors (see below), whose sum is σ = 2171417040. Its totient is φ = 2152857456.

The previous prime is 2162137213. The next prime is 2162137297. The reversal of 2162137247 is 7427312612.

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 2162137247 - 2⁶ = 2162137183 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 (2162137297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4639547 + ... + 4640012.

It is an arithmetic number, because the mean of its divisors is an integer number (542854260).

Almost surely, 2^2162137247 is an apocalyptic number.

2162137247 is a deficient number, since it is larger than the sum of its proper divisors (9279793).

2162137247 is an equidigital number, since it uses as much as digits as its factorization.

2162137247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9279792.

The product of its digits is 28224, while the sum is 35.

The square root of 2162137247 is about 46498.7875863447. The cubic root of 2162137247 is about 1293.0870215402.

Adding to 2162137247 its reverse (7427312612), we get a palindrome (9589449859).

The spelling of 2162137247 in words is "two billion, one hundred sixty-two million, one hundred thirty-seven thousand, two hundred forty-seven".