2039121139 has 4 divisors (see below), whose sum is σ = 2224495800. Its totient is φ = 1853746480.

The previous prime is 2039121137. The next prime is 2039121163. The reversal of 2039121139 is 9311219302.

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

It is a cyclic number.

It is not a de Polignac number, because 2039121139 - 2¹ = 2039121137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2039121139.

It is not an unprimeable number, because it can be changed into a prime (2039121137) 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, 92687314 + ... + 92687335.

It is an arithmetic number, because the mean of its divisors is an integer number (556123950).

Almost surely, 2^2039121139 is an apocalyptic number.

2039121139 is a deficient number, since it is larger than the sum of its proper divisors (185374661).

2039121139 is a wasteful number, since it uses less digits than its factorization.

2039121139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185374660.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 2039121139 is about 45156.6289596555. The cubic root of 2039121139 is about 1268.0829860322.

The spelling of 2039121139 in words is "two billion, thirty-nine million, one hundred twenty-one thousand, one hundred thirty-nine".