136666132 has 6 divisors (see below), whose sum is σ = 239165738. Its totient is φ = 68333064.

The previous prime is 136666099. The next prime is 136666133. The reversal of 136666132 is 231666631.

It can be written as a sum of positive squares in only one way, i.e., 82555396 + 54110736 = 9086^2 + 7356^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136666133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17083263 + ... + 17083270.

Almost surely, 2^136666132 is an apocalyptic number.

It is an amenable number.

136666132 is a deficient number, since it is larger than the sum of its proper divisors (102499606).

136666132 is a wasteful number, since it uses less digits than its factorization.

136666132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34166537 (or 34166535 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 136666132 is about 11690.4290768132. The cubic root of 136666132 is about 515.0945652218.

The spelling of 136666132 in words is "one hundred thirty-six million, six hundred sixty-six thousand, one hundred thirty-two".