135142232522 has 16 divisors (see below), whose sum is σ = 221744414592. Its totient is φ = 61260904320.

The previous prime is 135142232521. The next prime is 135142232551. The reversal of 135142232522 is 225232241531.

It is a super-2 number, since 2×135142232522² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135142232521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8360903 + ... + 8377050.

It is an arithmetic number, because the mean of its divisors is an integer number (13859025912).

Almost surely, 2^135142232522 is an apocalyptic number.

135142232522 is a deficient number, since it is larger than the sum of its proper divisors (86602182070).

135142232522 is a wasteful number, since it uses less digits than its factorization.

135142232522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16738333.

The product of its digits is 28800, while the sum is 32.

Subtracting 135142232522 from its reverse (225232241531), we obtain a palindrome (90090009009).

The spelling of 135142232522 in words is "one hundred thirty-five billion, one hundred forty-two million, two hundred thirty-two thousand, five hundred twenty-two".