1165430879 has 2 divisors, whose sum is σ = 1165430880. Its totient is φ = 1165430878.

The previous prime is 1165430857. The next prime is 1165430909. The reversal of 1165430879 is 9780345611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1165430879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1165430179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582715439 + 582715440.

It is an arithmetic number, because the mean of its divisors is an integer number (582715440).

Almost surely, 2^1165430879 is an apocalyptic number.

1165430879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165430879 is an equidigital number, since it uses as much as digits as its factorization.

1165430879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1165430879 is about 34138.4076810855. The cubic root of 1165430879 is about 1052.3547692780.

The spelling of 1165430879 in words is "one billion, one hundred sixty-five million, four hundred thirty thousand, eight hundred seventy-nine".