136536440 has 16 divisors (see below), whose sum is σ = 307207080. Its totient is φ = 54614560.

The previous prime is 136536409. The next prime is 136536473. The reversal of 136536440 is 44635631.

136536440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 136536397 and 136536406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1706666 + ... + 1706745.

Almost surely, 2^136536440 is an apocalyptic number.

136536440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136536440 is an abundant number, since it is smaller than the sum of its proper divisors (170670640).

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

136536440 is a wasteful number, since it uses less digits than its factorization.

136536440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413422 (or 3413418 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 136536440 is about 11684.8808295164. The cubic root of 136536440 is about 514.9315772987.

The spelling of 136536440 in words is "one hundred thirty-six million, five hundred thirty-six thousand, four hundred forty".