2163425137 has 4 divisors (see below), whose sum is σ = 2164169716. Its totient is φ = 2162680560.

The previous prime is 2163425111. The next prime is 2163425141. The reversal of 2163425137 is 7315243612.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1863130896 + 300294241 = 43164^2 + 17329^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163425137 - 2¹¹ = 2163423089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163425107) 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, 367914 + ... + 373747.

It is an arithmetic number, because the mean of its divisors is an integer number (541042429).

Almost surely, 2^2163425137 is an apocalyptic number.

It is an amenable number.

2163425137 is a deficient number, since it is larger than the sum of its proper divisors (744579).

2163425137 is an equidigital number, since it uses as much as digits as its factorization.

2163425137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744578.

The product of its digits is 30240, while the sum is 34.

The square root of 2163425137 is about 46512.6341653534. The cubic root of 2163425137 is about 1293.3437155893.

Adding to 2163425137 its reverse (7315243612), we get a palindrome (9478668749).

The spelling of 2163425137 in words is "two billion, one hundred sixty-three million, four hundred twenty-five thousand, one hundred thirty-seven".