136721876 has 12 divisors (see below), whose sum is σ = 239547840. Its totient is φ = 68279640.

The previous prime is 136721831. The next prime is 136721909. The reversal of 136721876 is 678127631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16460 + ... + 23331.

It is an arithmetic number, because the mean of its divisors is an integer number (19962320).

Almost surely, 2^136721876 is an apocalyptic number.

It is an amenable number.

136721876 is a deficient number, since it is larger than the sum of its proper divisors (102825964).

136721876 is a wasteful number, since it uses less digits than its factorization.

136721876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40654 (or 40652 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 136721876 is about 11692.8130062872. The cubic root of 136721876 is about 515.1645887358.

The spelling of 136721876 in words is "one hundred thirty-six million, seven hundred twenty-one thousand, eight hundred seventy-six".