136680244 has 6 divisors (see below), whose sum is σ = 239190434. Its totient is φ = 68340120.

The previous prime is 136680241. The next prime is 136680259. The reversal of 136680244 is 442086631.

It can be written as a sum of positive squares in only one way, i.e., 76772644 + 59907600 = 8762^2 + 7740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136680241) 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 as a sum of consecutive naturals, namely, 17085027 + ... + 17085034.

Almost surely, 2^136680244 is an apocalyptic number.

It is an amenable number.

136680244 is a deficient number, since it is larger than the sum of its proper divisors (102510190).

136680244 is a wasteful number, since it uses less digits than its factorization.

136680244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34170065 (or 34170063 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 136680244 is about 11691.0326318936. The cubic root of 136680244 is about 515.1122939846.

The spelling of 136680244 in words is "one hundred thirty-six million, six hundred eighty thousand, two hundred forty-four".