135321252441 has 16 divisors (see below), whose sum is σ = 191064484224. Its totient is φ = 84897356544.

The previous prime is 135321252431. The next prime is 135321252461. The reversal of 135321252441 is 144252123531.

It is not a de Polignac number, because 135321252441 - 2⁹ = 135321251929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135321252431) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 287571 + ... + 594423.

It is an arithmetic number, because the mean of its divisors is an integer number (11941530264).

Almost surely, 2^135321252441 is an apocalyptic number.

It is an amenable number.

135321252441 is a deficient number, since it is larger than the sum of its proper divisors (55743231783).

135321252441 is a wasteful number, since it uses less digits than its factorization.

135321252441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315520.

The product of its digits is 28800, while the sum is 33.

Adding to 135321252441 its reverse (144252123531), we get a palindrome (279573375972).

The spelling of 135321252441 in words is "one hundred thirty-five billion, three hundred twenty-one million, two hundred fifty-two thousand, four hundred forty-one".