136960081 has 2 divisors, whose sum is σ = 136960082. Its totient is φ = 136960080.

The previous prime is 136960073. The next prime is 136960097. The reversal of 136960081 is 180069631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98010000 + 38950081 = 9900^2 + 6241^2 .

It is a cyclic number.

It is not a de Polignac number, because 136960081 - 2³ = 136960073 is a prime.

It is a super-2 number, since 2×136960081² = 37516127575053122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136960001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68480040 + 68480041.

It is an arithmetic number, because the mean of its divisors is an integer number (68480041).

Almost surely, 2^136960081 is an apocalyptic number.

It is an amenable number.

136960081 is a deficient number, since it is larger than the sum of its proper divisors (1).

136960081 is an equidigital number, since it uses as much as digits as its factorization.

136960081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 136960081 is about 11702.9945313155. The cubic root of 136960081 is about 515.4635986342.

The spelling of 136960081 in words is "one hundred thirty-six million, nine hundred sixty thousand, eighty-one".