135928643 has 8 divisors (see below), whose sum is σ = 142029600. Its totient is φ = 129843648.

The previous prime is 135928619. The next prime is 135928687. The reversal of 135928643 is 346829531.

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

It is not a de Polignac number, because 135928643 - 2²⁴ = 119151427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135928643.

It is not an unprimeable number, because it can be changed into a prime (135328643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15503 + ... + 22631.

It is an arithmetic number, because the mean of its divisors is an integer number (17753700).

Almost surely, 2^135928643 is an apocalyptic number.

135928643 is a deficient number, since it is larger than the sum of its proper divisors (6100957).

135928643 is an equidigital number, since it uses as much as digits as its factorization.

135928643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7981.

The product of its digits is 155520, while the sum is 41.

The square root of 135928643 is about 11658.8439821451. The cubic root of 135928643 is about 514.1663617398.

The spelling of 135928643 in words is "one hundred thirty-five million, nine hundred twenty-eight thousand, six hundred forty-three".