135145542 has 32 divisors (see below), whose sum is σ = 309302784. Its totient is φ = 38563200.

The previous prime is 135145519. The next prime is 135145573. The reversal of 135145542 is 245541531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41742 + ... + 44862.

It is an arithmetic number, because the mean of its divisors is an integer number (9665712).

Almost surely, 2^135145542 is an apocalyptic number.

135145542 is an abundant number, since it is smaller than the sum of its proper divisors (174157242).

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

135145542 is a wasteful number, since it uses less digits than its factorization.

135145542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164.

The product of its digits is 12000, while the sum is 30.

The square root of 135145542 is about 11625.2114819473. The cubic root of 135145542 is about 513.1770684007.

The spelling of 135145542 in words is "one hundred thirty-five million, one hundred forty-five thousand, five hundred forty-two".