135242500 has 60 divisors (see below), whose sum is σ = 302303232. Its totient is φ = 52900000.

The previous prime is 135242489. The next prime is 135242521. The reversal of 135242500 is 5242531.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 116925 + ... + 118075.

Almost surely, 2^135242500 is an apocalyptic number.

135242500 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 135242500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151151616).

135242500 is an abundant number, since it is smaller than the sum of its proper divisors (167060732).

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

135242500 is a wasteful number, since it uses less digits than its factorization.

135242500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 135242500 is about 11629.3808949574. The cubic root of 135242500 is about 513.2997626141.

The spelling of 135242500 in words is "one hundred thirty-five million, two hundred forty-two thousand, five hundred".