2138739333 has 4 divisors (see below), whose sum is σ = 2851652448. Its totient is φ = 1425826220.

The previous prime is 2138739307. The next prime is 2138739377. The reversal of 2138739333 is 3339378312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2138739333 - 2⁵ = 2138739301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138739233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356456553 + ... + 356456558.

It is an arithmetic number, because the mean of its divisors is an integer number (712913112).

Almost surely, 2^2138739333 is an apocalyptic number.

It is an amenable number.

2138739333 is a deficient number, since it is larger than the sum of its proper divisors (712913115).

2138739333 is an equidigital number, since it uses as much as digits as its factorization.

2138739333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712913114.

The product of its digits is 244944, while the sum is 42.

The square root of 2138739333 is about 46246.5061707368. The cubic root of 2138739333 is about 1288.4056446192.

The spelling of 2138739333 in words is "two billion, one hundred thirty-eight million, seven hundred thirty-nine thousand, three hundred thirty-three".