137966 has 8 divisors (see below), whose sum is σ = 209304. Its totient is φ = 68200.

The previous prime is 137957. The next prime is 137983. The reversal of 137966 is 669731.

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

It is a congruent number.

It is an unprimeable number.

137966 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140 + ... + 543.

It is an arithmetic number, because the mean of its divisors is an integer number (26163).

2¹³⁷⁹⁶⁶ is an apocalyptic number.

137966 is a deficient number, since it is larger than the sum of its proper divisors (71338).

137966 is a wasteful number, since it uses less digits than its factorization.

137966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its digits is 6804, while the sum is 32.

The square root of 137966 is about 371.4377471394. The cubic root of 137966 is about 51.6722482119.

The spelling of 137966 in words is "one hundred thirty-seven thousand, nine hundred sixty-six".