136837081 has 2 divisors, whose sum is σ = 136837082. Its totient is φ = 136837080.

The previous prime is 136837067. The next prime is 136837117. The reversal of 136837081 is 180738631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134560000 + 2277081 = 11600^2 + 1509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136837081 is a prime.

It is a super-2 number, since 2×136837081² = 37448773473201122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136837081.

It is not a weakly prime, because it can be changed into another prime (136837681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68418540 + 68418541.

It is an arithmetic number, because the mean of its divisors is an integer number (68418541).

Almost surely, 2^136837081 is an apocalyptic number.

It is an amenable number.

136837081 is a deficient number, since it is larger than the sum of its proper divisors (1).

136837081 is an equidigital number, since it uses as much as digits as its factorization.

136837081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 136837081 is about 11697.7382856687. The cubic root of 136837081 is about 515.3092446270.

The spelling of 136837081 in words is "one hundred thirty-six million, eight hundred thirty-seven thousand, eighty-one".