136422231408649 has 2 divisors, whose sum is σ = 136422231408650. Its totient is φ = 136422231408648.

The previous prime is 136422231408641. The next prime is 136422231408689. The reversal of 136422231408649 is 946804132224631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134177124745225 + 2245106663424 = 11583485^2 + 1498368^2 .

It is an emirp because it is prime and its reverse (946804132224631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136422231408649 - 2³ = 136422231408641 is a prime.

It is a super-2 number, since 2×136422231408649² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136422231408649.

It is not a weakly prime, because it can be changed into another prime (136422231408641) 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, 68211115704324 + 68211115704325.

It is an arithmetic number, because the mean of its divisors is an integer number (68211115704325).

Almost surely, 2^{136422231408649} is an apocalyptic number.

It is an amenable number.

136422231408649 is a deficient number, since it is larger than the sum of its proper divisors (1).

136422231408649 is an equidigital number, since it uses as much as digits as its factorization.

136422231408649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11943936, while the sum is 55.

The spelling of 136422231408649 in words is "one hundred thirty-six trillion, four hundred twenty-two billion, two hundred thirty-one million, four hundred eight thousand, six hundred forty-nine".