136636963 has 2 divisors, whose sum is σ = 136636964. Its totient is φ = 136636962.

The previous prime is 136636949. The next prime is 136636993. The reversal of 136636963 is 369636631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136636963 is a prime.

It is not a weakly prime, because it can be changed into another prime (136636993) 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, 68318481 + 68318482.

It is an arithmetic number, because the mean of its divisors is an integer number (68318482).

Almost surely, 2^136636963 is an apocalyptic number.

136636963 is a deficient number, since it is larger than the sum of its proper divisors (1).

136636963 is an equidigital number, since it uses as much as digits as its factorization.

136636963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 43.

The square root of 136636963 is about 11689.1814512394. The cubic root of 136636963 is about 515.0579166335.

The spelling of 136636963 in words is "one hundred thirty-six million, six hundred thirty-six thousand, nine hundred sixty-three".