135487620 has 96 divisors (see below), whose sum is σ = 446342400. Its totient is φ = 34002432.

The previous prime is 135487591. The next prime is 135487643. The reversal of 135487620 is 26784531.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1801 + ... + 16559.

It is an arithmetic number, because the mean of its divisors is an integer number (4649400).

Almost surely, 2^135487620 is an apocalyptic number.

135487620 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 135487620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223171200).

135487620 is an abundant number, since it is smaller than the sum of its proper divisors (310854780).

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

135487620 is a wasteful number, since it uses less digits than its factorization.

135487620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14794 (or 14786 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 135487620 is about 11639.9149481429. The cubic root of 135487620 is about 513.6096851611.

It can be divided in two parts, 1354876 and 20, that added together give a square (1354896 = 1164²).

The spelling of 135487620 in words is "one hundred thirty-five million, four hundred eighty-seven thousand, six hundred twenty".