135512042442 has 32 divisors (see below), whose sum is σ = 309770115072. Its totient is φ = 38714188464.

The previous prime is 135512042437. The next prime is 135512042467. The reversal of 135512042442 is 244240215531.

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, 336363 + ... + 619809.

It is an arithmetic number, because the mean of its divisors is an integer number (9680316096).

Almost surely, 2^135512042442 is an apocalyptic number.

135512042442 is an abundant number, since it is smaller than the sum of its proper divisors (174258072630).

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

135512042442 is a wasteful number, since it uses less digits than its factorization.

135512042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294842.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 135512042442 its reverse (244240215531), we get a palindrome (379752257973).

The spelling of 135512042442 in words is "one hundred thirty-five billion, five hundred twelve million, forty-two thousand, four hundred forty-two".