1265061079 has 2 divisors, whose sum is σ = 1265061080. Its totient is φ = 1265061078.

The previous prime is 1265061047. The next prime is 1265061163. The reversal of 1265061079 is 9701605621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1265061079 - 2⁵ = 1265061047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1265061179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632530539 + 632530540.

It is an arithmetic number, because the mean of its divisors is an integer number (632530540).

Almost surely, 2^1265061079 is an apocalyptic number.

1265061079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265061079 is an equidigital number, since it uses as much as digits as its factorization.

1265061079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1265061079 is about 35567.6971281527. The cubic root of 1265061079 is about 1081.5264990846.

The spelling of 1265061079 in words is "one billion, two hundred sixty-five million, sixty-one thousand, seventy-nine".