136683637 has 2 divisors, whose sum is σ = 136683638. Its totient is φ = 136683636.

The previous prime is 136683629. The next prime is 136683649. The reversal of 136683637 is 736386631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80748196 + 55935441 = 8986^2 + 7479^2 .

It is an emirp because it is prime and its reverse (736386631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136683637 - 2³ = 136683629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136683593 and 136683602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136683607) 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, 68341818 + 68341819.

It is an arithmetic number, because the mean of its divisors is an integer number (68341819).

Almost surely, 2^136683637 is an apocalyptic number.

It is an amenable number.

136683637 is a deficient number, since it is larger than the sum of its proper divisors (1).

136683637 is an equidigital number, since it uses as much as digits as its factorization.

136683637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 136683637 is about 11691.1777422123. The cubic root of 136683637 is about 515.1165563942.

The spelling of 136683637 in words is "one hundred thirty-six million, six hundred eighty-three thousand, six hundred thirty-seven".