135261200442 has 8 divisors (see below), whose sum is σ = 270522400896. Its totient is φ = 45087066812.

The previous prime is 135261200401. The next prime is 135261200453. The reversal of 135261200442 is 244002162531.

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

135261200442 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11271766698 + ... + 11271766709.

It is an arithmetic number, because the mean of its divisors is an integer number (33815300112).

Almost surely, 2^135261200442 is an apocalyptic number.

135261200442 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.

135261200442 is a wasteful number, since it uses less digits than its factorization.

135261200442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22543533412.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 135261200442 its reverse (244002162531), we get a palindrome (379263362973).

The spelling of 135261200442 in words is "one hundred thirty-five billion, two hundred sixty-one million, two hundred thousand, four hundred forty-two".