135928642 has 8 divisors (see below), whose sum is σ = 203961276. Its totient is φ = 67941552.

The previous prime is 135928619. The next prime is 135928687. The reversal of 135928642 is 246829531.

It can be written as a sum of positive squares in 2 ways, for example, as 135699201 + 229441 = 11649^2 + 479^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 135928595 and 135928604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553 + ... + 16684.

Almost surely, 2^135928642 is an apocalyptic number.

135928642 is a deficient number, since it is larger than the sum of its proper divisors (68032634).

135928642 is a wasteful number, since it uses less digits than its factorization.

135928642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22772.

The product of its digits is 103680, while the sum is 40.

The square root of 135928642 is about 11658.8439392592. The cubic root of 135928642 is about 514.1663604790.

The spelling of 135928642 in words is "one hundred thirty-five million, nine hundred twenty-eight thousand, six hundred forty-two".