135631050500442 has 48 divisors (see below), whose sum is σ = 319351595728032. Its totient is φ = 38284840409760.

The previous prime is 135631050500431. The next prime is 135631050500443. The reversal of 135631050500442 is 244005050136531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 135631050500442.

It is not an unprimeable number, because it can be changed into a prime (135631050500443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2779072609 + ... + 2779121412.

It is an arithmetic number, because the mean of its divisors is an integer number (6653158244334).

Almost surely, 2^{135631050500442} is an apocalyptic number.

135631050500442 is an abundant number, since it is smaller than the sum of its proper divisors (183720545227590).

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

135631050500442 is a wasteful number, since it uses less digits than its factorization.

135631050500442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558194123 (or 5558194116 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 135631050500442 in words is "one hundred thirty-five trillion, six hundred thirty-one billion, fifty million, five hundred thousand, four hundred forty-two".