2138769122 has 32 divisors (see below), whose sum is σ = 3748626432. Its totient is φ = 896117904.

The previous prime is 2138769121. The next prime is 2138769161. The reversal of 2138769122 is 2219678312.

It is a self number, because there is not a number n which added to its sum of digits gives 2138769122.

It is not an unprimeable number, because it can be changed into a prime (2138769121) 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 in 15 ways as a sum of consecutive naturals, for example, 1172303 + ... + 1174125.

It is an arithmetic number, because the mean of its divisors is an integer number (117144576).

Almost surely, 2^2138769122 is an apocalyptic number.

2138769122 is a deficient number, since it is larger than the sum of its proper divisors (1609857310).

2138769122 is a wasteful number, since it uses less digits than its factorization.

2138769122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662.

The product of its digits is 72576, while the sum is 41.

The square root of 2138769122 is about 46246.8282371883. The cubic root of 2138769122 is about 1288.4116263576.

It can be divided in two parts, 21387 and 69122, that added together give a palindrome (90509).

The spelling of 2138769122 in words is "two billion, one hundred thirty-eight million, seven hundred sixty-nine thousand, one hundred twenty-two".