137606 has 8 divisors (see below), whose sum is σ = 235920. Its totient is φ = 58968.

The previous prime is 137597. The next prime is 137623. The reversal of 137606 is 606731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×137606² = 37870822472, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

137606 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 3 ways as a sum of consecutive naturals, for example, 4901 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (29490).

2¹³⁷⁶⁰⁶ is an apocalyptic number.

137606 is a deficient number, since it is larger than the sum of its proper divisors (98314).

137606 is an equidigital number, since it uses as much as digits as its factorization.

137606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9838.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 137606 is about 370.9528271897. The cubic root of 137606 is about 51.6272656015.

The spelling of 137606 in words is "one hundred thirty-seven thousand, six hundred six".