137744668 has 12 divisors (see below), whose sum is σ = 245601720. Its totient is φ = 67572752.

The previous prime is 137744653. The next prime is 137744671. The reversal of 137744668 is 866447731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324658 + ... + 325081.

It is an arithmetic number, because the mean of its divisors is an integer number (20466810).

Almost surely, 2^137744668 is an apocalyptic number.

It is an amenable number.

137744668 is a deficient number, since it is larger than the sum of its proper divisors (107857052).

137744668 is a wasteful number, since it uses less digits than its factorization.

137744668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649796 (or 649794 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 137744668 is about 11736.4674412704. The cubic root of 137744668 is about 516.4460168235.

The spelling of 137744668 in words is "one hundred thirty-seven million, seven hundred forty-four thousand, six hundred sixty-eight".