137983556 has 12 divisors (see below), whose sum is σ = 241991568. Its totient is φ = 68843112.

The previous prime is 137983513. The next prime is 137983561. The reversal of 137983556 is 655389731.

It is a self number, because there is not a number n which added to its sum of digits gives 137983556.

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, 35066 + ... + 38801.

It is an arithmetic number, because the mean of its divisors is an integer number (20165964).

Almost surely, 2^137983556 is an apocalyptic number.

It is an amenable number.

137983556 is a deficient number, since it is larger than the sum of its proper divisors (104008012).

137983556 is a wasteful number, since it uses less digits than its factorization.

137983556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74338 (or 74336 counting only the distinct ones).

The product of its digits is 680400, while the sum is 47.

The square root of 137983556 is about 11746.6402004999. The cubic root of 137983556 is about 516.7443986181.

The spelling of 137983556 in words is "one hundred thirty-seven million, nine hundred eighty-three thousand, five hundred fifty-six".