128541435 has 16 divisors (see below), whose sum is σ = 224363520. Its totient is φ = 62323040.

The previous prime is 128541433. The next prime is 128541451. The reversal of 128541435 is 534145821.

It is not a de Polignac number, because 128541435 - 2¹ = 128541433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 128541396 and 128541405.

It is not an unprimeable number, because it can be changed into a prime (128541433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389355 + ... + 389684.

It is an arithmetic number, because the mean of its divisors is an integer number (14022720).

Almost surely, 2^128541435 is an apocalyptic number.

128541435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128541435 is a deficient number, since it is larger than the sum of its proper divisors (95822085).

128541435 is a wasteful number, since it uses less digits than its factorization.

128541435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779058.

The product of its digits is 19200, while the sum is 33.

The square root of 128541435 is about 11337.6115209510. The cubic root of 128541435 is about 504.6780092948.

The spelling of 128541435 in words is "one hundred twenty-eight million, five hundred forty-one thousand, four hundred thirty-five".