135525443001020 has 48 divisors (see below), whose sum is σ = 286781050432800. Its totient is φ = 53795407061760.

The previous prime is 135525443001019. The next prime is 135525443001073. The reversal of 135525443001020 is 20100344525531.

It is a congruent number.

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, 158106146 + ... + 158961014.

It is an arithmetic number, because the mean of its divisors is an integer number (5974605217350).

Almost surely, 2^{135525443001020} is an apocalyptic number.

135525443001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135525443001020 is an abundant number, since it is smaller than the sum of its proper divisors (151255607431780).

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

135525443001020 is a wasteful number, since it uses less digits than its factorization.

135525443001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915518 (or 915516 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 135525443001020 its reverse (20100344525531), we get a palindrome (155625787526551).

The spelling of 135525443001020 in words is "one hundred thirty-five trillion, five hundred twenty-five billion, four hundred forty-three million, one thousand, twenty".