2773139 has 4 divisors (see below), whose sum is σ = 2794440. Its totient is φ = 2751840.

The previous prime is 2773123. The next prime is 2773153. The reversal of 2773139 is 9313772.

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 2773139 - 2⁴ = 2773123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2773339) 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, 10454 + ... + 10715.

It is an arithmetic number, because the mean of its divisors is an integer number (698610).

2^2773139 is an apocalyptic number.

2773139 is a deficient number, since it is larger than the sum of its proper divisors (21301).

2773139 is a wasteful number, since it uses less digits than its factorization.

2773139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21300.

The product of its digits is 7938, while the sum is 32.

The square root of 2773139 is about 1665.2744518547. The cubic root of 2773139 is about 140.4938173510.

The spelling of 2773139 in words is "two million, seven hundred seventy-three thousand, one hundred thirty-nine".