135985650 has 48 divisors (see below), whose sum is σ = 338457504. Its totient is φ = 36132480.

The previous prime is 135985621. The next prime is 135985691. The reversal of 135985650 is 56589531.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44574 + ... + 47526.

It is an arithmetic number, because the mean of its divisors is an integer number (7051198).

Almost surely, 2^135985650 is an apocalyptic number.

135985650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135985650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169228752).

135985650 is an abundant number, since it is smaller than the sum of its proper divisors (202471854).

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

135985650 is a wasteful number, since it uses less digits than its factorization.

135985650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275 (or 3270 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 135985650 is about 11661.2885222860. The cubic root of 135985650 is about 514.2382302941.

The spelling of 135985650 in words is "one hundred thirty-five million, nine hundred eighty-five thousand, six hundred fifty".