135841860 has 336 divisors, whose sum is σ = 537651072. Its totient is φ = 28226880.

The previous prime is 135841817. The next prime is 135841861. The reversal of 135841860 is 68148531.

135841860 is a `hidden beast` number, since 1 + 3 + 584 + 18 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (135841861) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 12349255 + ... + 12349265.

It is an arithmetic number, because the mean of its divisors is an integer number (1600152).

Almost surely, 2^135841860 is an apocalyptic number.

135841860 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 135841860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268825536).

135841860 is an abundant number, since it is smaller than the sum of its proper divisors (401809212).

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

135841860 is an equidigital number, since it uses as much as digits as its factorization.

135841860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 135841860 is about 11655.1216209871. The cubic root of 135841860 is about 514.0569160833.

The spelling of 135841860 in words is "one hundred thirty-five million, eight hundred forty-one thousand, eight hundred sixty".