134636521237 has 2 divisors, whose sum is σ = 134636521238. Its totient is φ = 134636521236.

The previous prime is 134636521157. The next prime is 134636521249. The reversal of 134636521237 is 732125636431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132791732836 + 1844788401 = 364406^2 + 42951^2 .

It is a cyclic number.

It is not a de Polignac number, because 134636521237 - 2⁷ = 134636521109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134636521193 and 134636521202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134636521267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67318260618 + 67318260619.

It is an arithmetic number, because the mean of its divisors is an integer number (67318260619).

Almost surely, 2^134636521237 is an apocalyptic number.

It is an amenable number.

134636521237 is a deficient number, since it is larger than the sum of its proper divisors (1).

134636521237 is an equidigital number, since it uses as much as digits as its factorization.

134636521237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 43.

The spelling of 134636521237 in words is "one hundred thirty-four billion, six hundred thirty-six million, five hundred twenty-one thousand, two hundred thirty-seven".