128836541 has 8 divisors (see below), whose sum is σ = 132021120. Its totient is φ = 125670528.

The previous prime is 128836537. The next prime is 128836573. The reversal of 128836541 is 145638821.

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 128836541 - 2² = 128836537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128836495 and 128836504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128833541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9965 + ... + 18893.

It is an arithmetic number, because the mean of its divisors is an integer number (16502640).

Almost surely, 2^128836541 is an apocalyptic number.

It is an amenable number.

128836541 is a deficient number, since it is larger than the sum of its proper divisors (3184579).

128836541 is an equidigital number, since it uses as much as digits as its factorization.

128836541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9283.

The product of its digits is 46080, while the sum is 38.

The square root of 128836541 is about 11350.6185294018. The cubic root of 128836541 is about 505.0639281224.

The spelling of 128836541 in words is "one hundred twenty-eight million, eight hundred thirty-six thousand, five hundred forty-one".