2138160226 has 4 divisors (see below), whose sum is σ = 3207240342. Its totient is φ = 1069080112.

The previous prime is 2138160223. The next prime is 2138160239. The reversal of 2138160226 is 6220618312.

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

It can be written as a sum of positive squares in only one way, i.e., 1152263025 + 985897201 = 33945^2 + 31399^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2138160223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534540055 + ... + 534540058.

Almost surely, 2^2138160226 is an apocalyptic number.

2138160226 is a deficient number, since it is larger than the sum of its proper divisors (1069080116).

2138160226 is a wasteful number, since it uses less digits than its factorization.

2138160226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069080115.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2138160226 is about 46240.2446576573. The cubic root of 2138160226 is about 1288.2893468125.

Adding to 2138160226 its reverse (6220618312), we get a palindrome (8358778538).

The spelling of 2138160226 in words is "two billion, one hundred thirty-eight million, one hundred sixty thousand, two hundred twenty-six".