2773212157 has 2 divisors, whose sum is σ = 2773212158. Its totient is φ = 2773212156.

The previous prime is 2773212149. The next prime is 2773212181. The reversal of 2773212157 is 7512123772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2020862116 + 752350041 = 44954^2 + 27429^2 .

It is a cyclic number.

It is not a de Polignac number, because 2773212157 - 2³ = 2773212149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2773218157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386606078 + 1386606079.

It is an arithmetic number, because the mean of its divisors is an integer number (1386606079).

Almost surely, 2^2773212157 is an apocalyptic number.

It is an amenable number.

2773212157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2773212157 is an equidigital number, since it uses as much as digits as its factorization.

2773212157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41160, while the sum is 37.

The square root of 2773212157 is about 52661.2965753788. The cubic root of 2773212157 is about 1404.9505277599.

The spelling of 2773212157 in words is "two billion, seven hundred seventy-three million, two hundred twelve thousand, one hundred fifty-seven".