136090506493 has 2 divisors, whose sum is σ = 136090506494. Its totient is φ = 136090506492.

The previous prime is 136090506479. The next prime is 136090506499. The reversal of 136090506493 is 394605090631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84589650649 + 51500855844 = 290843^2 + 226938^2 .

It is an emirp because it is prime and its reverse (394605090631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136090506493 - 2²¹ = 136088409341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136090506499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68045253246 + 68045253247.

It is an arithmetic number, because the mean of its divisors is an integer number (68045253247).

Almost surely, 2^136090506493 is an apocalyptic number.

It is an amenable number.

136090506493 is a deficient number, since it is larger than the sum of its proper divisors (1).

136090506493 is an equidigital number, since it uses as much as digits as its factorization.

136090506493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 46.

The spelling of 136090506493 in words is "one hundred thirty-six billion, ninety million, five hundred six thousand, four hundred ninety-three".