1115159157989 has 2 divisors, whose sum is σ = 1115159157990. Its totient is φ = 1115159157988.

The previous prime is 1115159157941. The next prime is 1115159158007. The reversal of 1115159157989 is 9897519515111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1016955267364 + 98203890625 = 1008442^2 + 313375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115159157989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115159157929) 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, 557579578994 + 557579578995.

It is an arithmetic number, because the mean of its divisors is an integer number (557579578995).

Almost surely, 2^{1115159157989} is an apocalyptic number.

It is an amenable number.

1115159157989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115159157989 is an equidigital number, since it uses as much as digits as its factorization.

1115159157989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103000, while the sum is 62.

The spelling of 1115159157989 in words is "one trillion, one hundred fifteen billion, one hundred fifty-nine million, one hundred fifty-seven thousand, nine hundred eighty-nine".