128326541 has 6 divisors (see below), whose sum is σ = 149277870. Its totient is φ = 109994136.

The previous prime is 128326501. The next prime is 128326553. The reversal of 128326541 is 145623821.

It can be written as a sum of positive squares in only one way, i.e., 79032100 + 49294441 = 8890^2 + 7021^2 .

It is not a de Polignac number, because 128326541 - 2¹⁴ = 128310157 is a prime.

It is a super-2 number, since 2×128326541² = 32935402250049362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128326498 and 128326507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128326501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1309406 + ... + 1309503.

It is an arithmetic number, because the mean of its divisors is an integer number (24879645).

Almost surely, 2^128326541 is an apocalyptic number.

It is an amenable number.

128326541 is a deficient number, since it is larger than the sum of its proper divisors (20951329).

128326541 is an equidigital number, since it uses as much as digits as its factorization.

128326541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618923 (or 2618916 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 128326541 is about 11328.1305165504. The cubic root of 128326541 is about 504.3966142496.

The spelling of 128326541 in words is "one hundred twenty-eight million, three hundred twenty-six thousand, five hundred forty-one".