135728956 has 12 divisors (see below), whose sum is σ = 259119000. Its totient is φ = 61694960.

The previous prime is 135728927. The next prime is 135728963. The reversal of 135728956 is 659827531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542331 + ... + 1542418.

It is an arithmetic number, because the mean of its divisors is an integer number (21593250).

Almost surely, 2^135728956 is an apocalyptic number.

It is an amenable number.

135728956 is a deficient number, since it is larger than the sum of its proper divisors (123390044).

135728956 is a wasteful number, since it uses less digits than its factorization.

135728956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084764 (or 3084762 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The square root of 135728956 is about 11650.2770782501. The cubic root of 135728956 is about 513.9144583532.

The spelling of 135728956 in words is "one hundred thirty-five million, seven hundred twenty-eight thousand, nine hundred fifty-six".