136102544003581 has 2 divisors, whose sum is σ = 136102544003582. Its totient is φ = 136102544003580.

The previous prime is 136102544003563. The next prime is 136102544003603. The reversal of 136102544003581 is 185300445201631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77593354246681 + 58509189756900 = 8808709^2 + 7649130^2 .

It is a cyclic number.

It is not a de Polignac number, because 136102544003581 - 2⁷ = 136102544003453 is a prime.

It is a super-2 number, since 2×136102544003581² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136102544003551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68051272001790 + 68051272001791.

It is an arithmetic number, because the mean of its divisors is an integer number (68051272001791).

Almost surely, 2^{136102544003581} is an apocalyptic number.

It is an amenable number.

136102544003581 is a deficient number, since it is larger than the sum of its proper divisors (1).

136102544003581 is an equidigital number, since it uses as much as digits as its factorization.

136102544003581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 136102544003581 in words is "one hundred thirty-six trillion, one hundred two billion, five hundred forty-four million, three thousand, five hundred eighty-one".