136666413 has 48 divisors (see below), whose sum is σ = 223289280. Its totient is φ = 82555200.

The previous prime is 136666393. The next prime is 136666429. The reversal of 136666413 is 314666631.

It is not a de Polignac number, because 136666413 - 2²⁶ = 69557549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136666613) 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 in 47 ways as a sum of consecutive naturals, for example, 278098 + ... + 278588.

It is an arithmetic number, because the mean of its divisors is an integer number (4651860).

Almost surely, 2^136666413 is an apocalyptic number.

136666413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

136666413 is a deficient number, since it is larger than the sum of its proper divisors (86622867).

136666413 is a wasteful number, since it uses less digits than its factorization.

136666413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 568 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 136666413 is about 11690.4410951854. The cubic root of 136666413 is about 515.0949182512.

The spelling of 136666413 in words is "one hundred thirty-six million, six hundred sixty-six thousand, four hundred thirteen".