135541021542 has 8 divisors (see below), whose sum is σ = 271082043096. Its totient is φ = 45180340512.

The previous prime is 135541021513. The next prime is 135541021559. The reversal of 135541021542 is 245120145531.

It is a sphenic number, since it is the product of 3 distinct primes.

135541021542 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11295085123 + ... + 11295085134.

It is an arithmetic number, because the mean of its divisors is an integer number (33885255387).

Almost surely, 2^135541021542 is an apocalyptic number.

135541021542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

135541021542 is a wasteful number, since it uses less digits than its factorization.

135541021542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22590170262.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 135541021542 in words is "one hundred thirty-five billion, five hundred forty-one million, twenty-one thousand, five hundred forty-two".