137686005 has 24 divisors (see below), whose sum is σ = 242223072. Its totient is φ = 72334944.

The previous prime is 137686001. The next prime is 137686037. The reversal of 137686005 is 500686731.

It is not a de Polignac number, because 137686005 - 2² = 137686001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137686001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19819 + ... + 25848.

It is an arithmetic number, because the mean of its divisors is an integer number (10092628).

Almost surely, 2^137686005 is an apocalyptic number.

137686005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137686005 is a deficient number, since it is larger than the sum of its proper divisors (104537067).

137686005 is a wasteful number, since it uses less digits than its factorization.

137686005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45745 (or 45742 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 137686005 is about 11733.9679989337. The cubic root of 137686005 is about 516.3726913607.

The spelling of 137686005 in words is "one hundred thirty-seven million, six hundred eighty-six thousand, five".