136412644 has 6 divisors (see below), whose sum is σ = 238722134. Its totient is φ = 68206320.

The previous prime is 136412621. The next prime is 136412651. The reversal of 136412644 is 446214631.

It can be written as a sum of positive squares in only one way, i.e., 122943744 + 13468900 = 11088^2 + 3670^2 .

It is an unprimeable number.

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, 17051577 + ... + 17051584.

Almost surely, 2^136412644 is an apocalyptic number.

It is an amenable number.

136412644 is a deficient number, since it is larger than the sum of its proper divisors (102309490).

136412644 is a wasteful number, since it uses less digits than its factorization.

136412644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34103165 (or 34103163 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 136412644 is about 11679.5823555468. The cubic root of 136412644 is about 514.7759027518.

The spelling of 136412644 in words is "one hundred thirty-six million, four hundred twelve thousand, six hundred forty-four".