136585940 has 24 divisors (see below), whose sum is σ = 296722440. Its totient is φ = 52750208.

The previous prime is 136585921. The next prime is 136585949. The reversal of 136585940 is 49585631.

It can be written as a sum of positive squares in 4 ways, for example, as 583696 + 136002244 = 764^2 + 11662^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136585949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117167 + ... + 118326.

It is an arithmetic number, because the mean of its divisors is an integer number (12363435).

Almost surely, 2^136585940 is an apocalyptic number.

136585940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136585940 is an abundant number, since it is smaller than the sum of its proper divisors (160136500).

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

136585940 is a wasteful number, since it uses less digits than its factorization.

136585940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235531 (or 235529 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 136585940 is about 11686.9987593051. The cubic root of 136585940 is about 514.9937976442.

The spelling of 136585940 in words is "one hundred thirty-six million, five hundred eighty-five thousand, nine hundred forty".