135128741 has 8 divisors (see below), whose sum is σ = 155172000. Its totient is φ = 116378640.

The previous prime is 135128737. The next prime is 135128771. The reversal of 135128741 is 147821531.

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 135128741 - 2² = 135128737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135128698 and 135128707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135128771) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 323066 + ... + 323483.

It is an arithmetic number, because the mean of its divisors is an integer number (19396500).

Almost surely, 2^135128741 is an apocalyptic number.

135128741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135128741 is a deficient number, since it is larger than the sum of its proper divisors (20043259).

135128741 is a wasteful number, since it uses less digits than its factorization.

135128741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646579.

The product of its digits is 6720, while the sum is 32.

The square root of 135128741 is about 11624.4888489774. The cubic root of 135128741 is about 513.1558018336.

The spelling of 135128741 in words is "one hundred thirty-five million, one hundred twenty-eight thousand, seven hundred forty-one".