680122136 has 16 divisors (see below), whose sum is σ = 1275693000. Its totient is φ = 339937344.

The previous prime is 680122133. The next prime is 680122141. The reversal of 680122136 is 631221086.

It is a super-2 number, since 2×680122136² = 925132239754404992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 680122099 and 680122108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680122133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10451 + ... + 38333.

Almost surely, 2^680122136 is an apocalyptic number.

It is an amenable number.

680122136 is a deficient number, since it is larger than the sum of its proper divisors (595570864).

680122136 is a wasteful number, since it uses less digits than its factorization.

680122136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30938 (or 30934 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 680122136 is about 26079.1513665610. The cubic root of 680122136 is about 879.4185794356.

The spelling of 680122136 in words is "six hundred eighty million, one hundred twenty-two thousand, one hundred thirty-six".