135251120512 has 32 divisors (see below), whose sum is σ = 271917597600. Its totient is φ = 67005135360.

The previous prime is 135251120491. The next prime is 135251120519. The reversal of 135251120512 is 215021152531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135251120519) 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, 4833064 + ... + 4860967.

It is an arithmetic number, because the mean of its divisors is an integer number (8497424925).

Almost surely, 2^135251120512 is an apocalyptic number.

It is an amenable number.

135251120512 is an abundant number, since it is smaller than the sum of its proper divisors (136666477088).

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

135251120512 is an equidigital number, since it uses as much as digits as its factorization.

135251120512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9694154 (or 9694142 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 135251120512 in words is "one hundred thirty-five billion, two hundred fifty-one million, one hundred twenty thousand, five hundred twelve".