136325840 has 120 divisors (see below), whose sum is σ = 374038560. Its totient is φ = 46066944.

The previous prime is 136325831. The next prime is 136325843. The reversal of 136325840 is 48523631.

It is a junction number, because it is equal to n+sod(n) for n = 136325797 and 136325806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136325843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325151 + ... + 325569.

It is an arithmetic number, because the mean of its divisors is an integer number (3116988).

Almost surely, 2^136325840 is an apocalyptic number.

136325840 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 136325840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187019280).

136325840 is an abundant number, since it is smaller than the sum of its proper divisors (237712720).

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

136325840 is a wasteful number, since it uses less digits than its factorization.

136325840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 136325840 is about 11675.8657066618. The cubic root of 136325840 is about 514.6666897844. Note that the first 4 decimals are identical.

The spelling of 136325840 in words is "one hundred thirty-six million, three hundred twenty-five thousand, eight hundred forty".