135938285321 has 8 divisors (see below), whose sum is σ = 138835759104. Its totient is φ = 133041027040.

The previous prime is 135938285311. The next prime is 135938285323. The reversal of 135938285321 is 123582839531.

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 135938285321 - 2²⁶ = 135871176457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135938285321.

It is not an unprimeable number, because it can be changed into a prime (135938285323) 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, 2372021 + ... + 2428653.

It is an arithmetic number, because the mean of its divisors is an integer number (17354469888).

Almost surely, 2^135938285321 is an apocalyptic number.

It is an amenable number.

135938285321 is a deficient number, since it is larger than the sum of its proper divisors (2897473783).

135938285321 is an equidigital number, since it uses as much as digits as its factorization.

135938285321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107751.

The product of its digits is 1555200, while the sum is 50.

The spelling of 135938285321 in words is "one hundred thirty-five billion, nine hundred thirty-eight million, two hundred eighty-five thousand, three hundred twenty-one".