1159678081 has 2 divisors, whose sum is σ = 1159678082. Its totient is φ = 1159678080.

The previous prime is 1159678057. The next prime is 1159678109. The reversal of 1159678081 is 1808769511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1011812481 + 147865600 = 31809^2 + 12160^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159678081 - 2¹¹ = 1159676033 is a prime.

It is a super-2 number, since 2×1159678081² = 2689706503103685122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1159676081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579839040 + 579839041.

It is an arithmetic number, because the mean of its divisors is an integer number (579839041).

Almost surely, 2^1159678081 is an apocalyptic number.

It is an amenable number.

1159678081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159678081 is an equidigital number, since it uses as much as digits as its factorization.

1159678081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 46.

The square root of 1159678081 is about 34054.0464702802. The cubic root of 1159678081 is about 1050.6203683936.

The spelling of 1159678081 in words is "one billion, one hundred fifty-nine million, six hundred seventy-eight thousand, eighty-one".