136856040 has 64 divisors (see below), whose sum is σ = 414374400. Its totient is φ = 36156672.

The previous prime is 136856023. The next prime is 136856051. The reversal of 136856040 is 40658631.

It is a junction number, because it is equal to n+sod(n) for n = 136855992 and 136856010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7849 + ... + 18311.

It is an arithmetic number, because the mean of its divisors is an integer number (6474600).

Almost surely, 2^136856040 is an apocalyptic number.

136856040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136856040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207187200).

136856040 is an abundant number, since it is smaller than the sum of its proper divisors (277518360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136856040 is a wasteful number, since it uses less digits than its factorization.

136856040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10586 (or 10582 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 136856040 is about 11698.5486279282. The cubic root of 136856040 is about 515.3330425058. Note that the first 3 decimals are identical.

The spelling of 136856040 in words is "one hundred thirty-six million, eight hundred fifty-six thousand, forty".