137686634 has 16 divisors (see below), whose sum is σ = 209157120. Its totient is φ = 67971600.

The previous prime is 137686631. The next prime is 137686663. The reversal of 137686634 is 436686731.

137686634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (137686631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96047 + ... + 97469.

It is an arithmetic number, because the mean of its divisors is an integer number (13072320).

Almost surely, 2^137686634 is an apocalyptic number.

137686634 is a deficient number, since it is larger than the sum of its proper divisors (71470486).

137686634 is a wasteful number, since it uses less digits than its factorization.

137686634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its digits is 435456, while the sum is 44.

The square root of 137686634 is about 11733.9948014306. The cubic root of 137686634 is about 516.3734776859.

It can be divided in two parts, 13768 and 6634, that added together give a palindrome (20402).

The spelling of 137686634 in words is "one hundred thirty-seven million, six hundred eighty-six thousand, six hundred thirty-four".