137678612 has 12 divisors (see below), whose sum is σ = 243190080. Its totient is φ = 68195736.

The previous prime is 137678603. The next prime is 137678623. The reversal of 137678612 is 216876731.

It is a self number, because there is not a number n which added to its sum of digits gives 137678612.

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, 160412 + ... + 161267.

It is an arithmetic number, because the mean of its divisors is an integer number (20265840).

Almost surely, 2^137678612 is an apocalyptic number.

It is an amenable number.

137678612 is a deficient number, since it is larger than the sum of its proper divisors (105511468).

137678612 is a wasteful number, since it uses less digits than its factorization.

137678612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321790 (or 321788 counting only the distinct ones).

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

The square root of 137678612 is about 11733.6529691311. The cubic root of 137678612 is about 516.3634490473.

The spelling of 137678612 in words is "one hundred thirty-seven million, six hundred seventy-eight thousand, six hundred twelve".