2138235712 has 56 divisors (see below), whose sum is σ = 4288161096. Its totient is φ = 1057824768.

The previous prime is 2138235709. The next prime is 2138235713. The reversal of 2138235712 is 2175328312.

It can be written as a sum of positive squares in 4 ways, for example, as 1577536 + 2136658176 = 1256^2 + 46224^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138235713) 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 7 ways as a sum of consecutive naturals, for example, 3465228 + ... + 3465844.

Almost surely, 2^2138235712 is an apocalyptic number.

It is an amenable number.

2138235712 is an abundant number, since it is smaller than the sum of its proper divisors (2149925384).

2138235712 is a wasteful number, since it uses less digits than its factorization.

2138235712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1105 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 2138235712 is about 46241.0608874840. The cubic root of 2138235712 is about 1288.3045073017.

The spelling of 2138235712 in words is "two billion, one hundred thirty-eight million, two hundred thirty-five thousand, seven hundred twelve".