135844000 has 48 divisors (see below), whose sum is σ = 333778536. Its totient is φ = 54336000.

The previous prime is 135843973. The next prime is 135844001. The reversal of 135844000 is 448531.

It can be written as a sum of positive squares in 4 ways, for example, as 11209104 + 124634896 = 3348^2 + 11164^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (135844001) 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, 12981 + ... + 20980.

Almost surely, 2^135844000 is an apocalyptic number.

135844000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135844000 is an abundant number, since it is smaller than the sum of its proper divisors (197934536).

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

135844000 is an equidigital number, since it uses as much as digits as its factorization.

135844000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33986 (or 33968 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 135844000 is about 11655.2134257593. The cubic root of 135844000 is about 514.0596154869.

The spelling of 135844000 in words is "one hundred thirty-five million, eight hundred forty-four thousand".