2775157247 has 2 divisors, whose sum is σ = 2775157248. Its totient is φ = 2775157246.

The previous prime is 2775157181. The next prime is 2775157303. The reversal of 2775157247 is 7427515772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2775157247 - 2¹⁸ = 2774895103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2775150247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387578623 + 1387578624.

It is an arithmetic number, because the mean of its divisors is an integer number (1387578624).

Almost surely, 2^2775157247 is an apocalyptic number.

2775157247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2775157247 is an equidigital number, since it uses as much as digits as its factorization.

2775157247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960400, while the sum is 47.

The square root of 2775157247 is about 52679.7612655942. The cubic root of 2775157247 is about 1405.2789215035.

The spelling of 2775157247 in words is "two billion, seven hundred seventy-five million, one hundred fifty-seven thousand, two hundred forty-seven".