136660149 has 16 divisors (see below), whose sum is σ = 207169600. Its totient is φ = 88987248.

The previous prime is 136660039. The next prime is 136660159. The reversal of 136660149 is 941066631.

It is not a de Polignac number, because 136660149 - 2⁸ = 136659893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136660159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57694 + ... + 60015.

It is an arithmetic number, because the mean of its divisors is an integer number (12948100).

Almost surely, 2^136660149 is an apocalyptic number.

It is an amenable number.

136660149 is a deficient number, since it is larger than the sum of its proper divisors (70509451).

136660149 is a wasteful number, since it uses less digits than its factorization.

136660149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117761 (or 117755 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 136660149 is about 11690.1731809242. The cubic root of 136660149 is about 515.0870484710.

The spelling of 136660149 in words is "one hundred thirty-six million, six hundred sixty thousand, one hundred forty-nine".