1288755079 has 2 divisors, whose sum is σ = 1288755080. Its totient is φ = 1288755078.

The previous prime is 1288755043. The next prime is 1288755121. The reversal of 1288755079 is 9705578821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1288755079 - 2¹⁵ = 1288722311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1288755779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644377539 + 644377540.

It is an arithmetic number, because the mean of its divisors is an integer number (644377540).

Almost surely, 2^1288755079 is an apocalyptic number.

1288755079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288755079 is an equidigital number, since it uses as much as digits as its factorization.

1288755079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 52.

The square root of 1288755079 is about 35899.2350754163. The cubic root of 1288755079 is about 1088.2369385459.

The spelling of 1288755079 in words is "one billion, two hundred eighty-eight million, seven hundred fifty-five thousand, seventy-nine".