135425620 has 72 divisors (see below), whose sum is σ = 316122912. Its totient is φ = 48692160.

The previous prime is 135425603. The next prime is 135425623. The reversal of 135425620 is 26524531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135425623) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 258679 + ... + 259201.

It is an arithmetic number, because the mean of its divisors is an integer number (4390596).

Almost surely, 2^135425620 is an apocalyptic number.

135425620 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 135425620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158061456).

135425620 is an abundant number, since it is smaller than the sum of its proper divisors (180697292).

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

135425620 is a wasteful number, since it uses less digits than its factorization.

135425620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 135425620 is about 11637.2513936926. The cubic root of 135425620 is about 513.5313295174.

The spelling of 135425620 in words is "one hundred thirty-five million, four hundred twenty-five thousand, six hundred twenty".