136885613 has 2 divisors, whose sum is σ = 136885614. Its totient is φ = 136885612.

The previous prime is 136885571. The next prime is 136885621. The reversal of 136885613 is 316588631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134629609 + 2256004 = 11603^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 136885613 - 2⁶ = 136885549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136885663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68442806 + 68442807.

It is an arithmetic number, because the mean of its divisors is an integer number (68442807).

Almost surely, 2^136885613 is an apocalyptic number.

It is an amenable number.

136885613 is a deficient number, since it is larger than the sum of its proper divisors (1).

136885613 is an equidigital number, since it uses as much as digits as its factorization.

136885613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 136885613 is about 11699.8125198654. The cubic root of 136885613 is about 515.3701589933.

The spelling of 136885613 in words is "one hundred thirty-six million, eight hundred eighty-five thousand, six hundred thirteen".