135452012423521 has 8 divisors (see below), whose sum is σ = 138663962877440. Its totient is φ = 132242875772112.

The previous prime is 135452012423501. The next prime is 135452012423527. The reversal of 135452012423521 is 125324210254531.

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

It is a cyclic number.

It is not a de Polignac number, because 135452012423521 - 2⁷ = 135452012423393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135452012423527) 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, 703353210 + ... + 703545763.

It is an arithmetic number, because the mean of its divisors is an integer number (17332995359680).

Almost surely, 2^{135452012423521} is an apocalyptic number.

It is an amenable number.

135452012423521 is a deficient number, since it is larger than the sum of its proper divisors (3211950453919).

135452012423521 is a wasteful number, since it uses less digits than its factorization.

135452012423521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406901255.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 135452012423521 in words is "one hundred thirty-five trillion, four hundred fifty-two billion, twelve million, four hundred twenty-three thousand, five hundred twenty-one".