1072771279 has 2 divisors, whose sum is σ = 1072771280. Its totient is φ = 1072771278.

The previous prime is 1072771261. The next prime is 1072771307. The reversal of 1072771279 is 9721772701.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072771279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072774279) 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, 536385639 + 536385640.

It is an arithmetic number, because the mean of its divisors is an integer number (536385640).

Almost surely, 2^1072771279 is an apocalyptic number.

1072771279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072771279 is an equidigital number, since it uses as much as digits as its factorization.

1072771279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86436, while the sum is 43.

The square root of 1072771279 is about 32753.1873105504. The cubic root of 1072771279 is about 1023.6913790483.

The spelling of 1072771279 in words is "one billion, seventy-two million, seven hundred seventy-one thousand, two hundred seventy-nine".