135025380 has 240 divisors, whose sum is σ = 496003200. Its totient is φ = 30862944.

The previous prime is 135025379. The next prime is 135025393. The reversal of 135025380 is 83520531.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 19289337 + ... + 19289343.

It is an arithmetic number, because the mean of its divisors is an integer number (2066680).

Almost surely, 2^135025380 is an apocalyptic number.

135025380 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 135025380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248001600).

135025380 is an abundant number, since it is smaller than the sum of its proper divisors (360977820).

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

135025380 is an frugal number, since it uses more digits than its factorization.

135025380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 135025380 is about 11620.0421685982. The cubic root of 135025380 is about 513.0249295364.

The spelling of 135025380 in words is "one hundred thirty-five million, twenty-five thousand, three hundred eighty".