137728616 has 8 divisors (see below), whose sum is σ = 258241170. Its totient is φ = 68864304.

The previous prime is 137728607. The next prime is 137728637. The reversal of 137728616 is 616827731.

It can be written as a sum of positive squares in only one way, i.e., 130188100 + 7540516 = 11410^2 + 2746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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, 8608031 + ... + 8608046.

Almost surely, 2^137728616 is an apocalyptic number.

It is an amenable number.

137728616 is a deficient number, since it is larger than the sum of its proper divisors (120512554).

137728616 is a wasteful number, since it uses less digits than its factorization.

137728616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216083 (or 17216079 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 137728616 is about 11735.7835699198. The cubic root of 137728616 is about 516.4259547922.

The spelling of 137728616 in words is "one hundred thirty-seven million, seven hundred twenty-eight thousand, six hundred sixteen".