136856812 has 24 divisors (see below), whose sum is σ = 245170800. Its totient is φ = 66820416.

The previous prime is 136856807. The next prime is 136856843. The reversal of 136856812 is 218658631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47139 + ... + 49957.

It is an arithmetic number, because the mean of its divisors is an integer number (10215450).

Almost surely, 2^136856812 is an apocalyptic number.

It is an amenable number.

136856812 is a deficient number, since it is larger than the sum of its proper divisors (108313988).

136856812 is a wasteful number, since it uses less digits than its factorization.

136856812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105 (or 3103 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 136856812 is about 11698.5816234277. The cubic root of 136856812 is about 515.3340114957.

The spelling of 136856812 in words is "one hundred thirty-six million, eight hundred fifty-six thousand, eight hundred twelve".