137648128 has 24 divisors (see below), whose sum is σ = 275233140. Its totient is φ = 68823040.

The previous prime is 137648059. The next prime is 137648219. The reversal of 137648128 is 821846731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31558 + ... + 35653.

Almost surely, 2^137648128 is an apocalyptic number.

It is an amenable number.

137648128 is a deficient number, since it is larger than the sum of its proper divisors (137585012).

137648128 is an frugal number, since it uses more digits than its factorization.

137648128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67233 (or 67213 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 137648128 is about 11732.3538985150. The cubic root of 137648128 is about 516.3253361672.

The spelling of 137648128 in words is "one hundred thirty-seven million, six hundred forty-eight thousand, one hundred twenty-eight".