2773123 has 2 divisors, whose sum is σ = 2773124. Its totient is φ = 2773122.

The previous prime is 2773097. The next prime is 2773153. The reversal of 2773123 is 3213772.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2773123 is a prime.

It is a super-2 number, since 2×2773123² = 15380422346258, which contains 22 as substring.

It is an Ulam number.

2773123 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2773153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386561 + 1386562.

It is an arithmetic number, because the mean of its divisors is an integer number (1386562).

2^2773123 is an apocalyptic number.

2773123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2773123 is an equidigital number, since it uses as much as digits as its factorization.

2773123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 25.

The square root of 2773123 is about 1665.2696478348. The cubic root of 2773123 is about 140.4935471511.

Adding to 2773123 its reverse (3213772), we get a palindrome (5986895).

The spelling of 2773123 in words is "two million, seven hundred seventy-three thousand, one hundred twenty-three".