135564000 has 384 divisors, whose sum is σ = 528353280. Its totient is φ = 29952000.

The previous prime is 135563977. The next prime is 135564007. The reversal of 135564000 is 465531.

It is a super-4 number, since 4×135564000⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135564007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1715961 + ... + 1716039.

It is an arithmetic number, because the mean of its divisors is an integer number (1375920).

Almost surely, 2^135564000 is an apocalyptic number.

135564000 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 135564000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264176640).

135564000 is an abundant number, since it is smaller than the sum of its proper divisors (392789280).

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

135564000 is a wasteful number, since it uses less digits than its factorization.

135564000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 135564000 is about 11643.1954376795. The cubic root of 135564000 is about 513.7061814025.

The spelling of 135564000 in words is "one hundred thirty-five million, five hundred sixty-four thousand".