135422521042 has 8 divisors (see below), whose sum is σ = 203212128636. Its totient is φ = 67685144832.

The previous prime is 135422521027. The next prime is 135422521043. The reversal of 135422521042 is 240125224531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133094362041 + 2328159001 = 364821^2 + 48251^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 135422520995 and 135422521013.

It is not an unprimeable number, because it can be changed into a prime (135422521043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13051363 + ... + 13061734.

Almost surely, 2^135422521042 is an apocalyptic number.

135422521042 is a deficient number, since it is larger than the sum of its proper divisors (67789607594).

135422521042 is a wasteful number, since it uses less digits than its factorization.

135422521042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26115692.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 135422521042 its reverse (240125224531), we get a palindrome (375547745573).

The spelling of 135422521042 in words is "one hundred thirty-five billion, four hundred twenty-two million, five hundred twenty-one thousand, forty-two".