1158955879 has 2 divisors, whose sum is σ = 1158955880. Its totient is φ = 1158955878.

The previous prime is 1158955877. The next prime is 1158955927. The reversal of 1158955879 is 9785598511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1158955879 - 2¹ = 1158955877 is a prime.

Together with 1158955877, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1158955873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579477939 + 579477940.

It is an arithmetic number, because the mean of its divisors is an integer number (579477940).

Almost surely, 2^1158955879 is an apocalyptic number.

1158955879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158955879 is an equidigital number, since it uses as much as digits as its factorization.

1158955879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 58.

The square root of 1158955879 is about 34043.4410569789. The cubic root of 1158955879 is about 1050.4022280588.

The spelling of 1158955879 in words is "one billion, one hundred fifty-eight million, nine hundred fifty-five thousand, eight hundred seventy-nine".