135542512 has 40 divisors (see below), whose sum is σ = 303948800. Its totient is φ = 57350592.

The previous prime is 135542503. The next prime is 135542527. The reversal of 135542512 is 215245531.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1189 + ... + 16507.

It is an arithmetic number, because the mean of its divisors is an integer number (7598720).

Almost surely, 2^135542512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135542512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151974400).

135542512 is an abundant number, since it is smaller than the sum of its proper divisors (168406288).

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

135542512 is a wasteful number, since it uses less digits than its factorization.

135542512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15413 (or 15407 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 135542512 is about 11642.2726303759. The cubic root of 135542512 is about 513.6790377614.

The spelling of 135542512 in words is "one hundred thirty-five million, five hundred forty-two thousand, five hundred twelve".