2138747033 has 4 divisors (see below), whose sum is σ = 2264555700. Its totient is φ = 2012938368.

The previous prime is 2138746993. The next prime is 2138747053. The reversal of 2138747033 is 3307478312.

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 810654784 + 1328092249 = 28472^2 + 36443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2138747033 - 2⁶ = 2138746969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138747053) 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 3 ways as a sum of consecutive naturals, for example, 62904308 + ... + 62904341.

It is an arithmetic number, because the mean of its divisors is an integer number (566138925).

Almost surely, 2^2138747033 is an apocalyptic number.

It is an amenable number.

2138747033 is a deficient number, since it is larger than the sum of its proper divisors (125808667).

2138747033 is a wasteful number, since it uses less digits than its factorization.

2138747033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125808666.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 2138747033 is about 46246.5894201940. The cubic root of 2138747033 is about 1288.4071908122.

The spelling of 2138747033 in words is "two billion, one hundred thirty-eight million, seven hundred forty-seven thousand, thirty-three".