128211082 has 8 divisors (see below), whose sum is σ = 192365316. Its totient is φ = 64089312.

The previous prime is 128211053. The next prime is 128211089. The reversal of 128211082 is 280112821.

It can be written as a sum of positive squares in 2 ways, for example, as 123454321 + 4756761 = 11111^2 + 2181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×128211082² = 32876163095221448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128211089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8868 + ... + 18304.

Almost surely, 2^128211082 is an apocalyptic number.

128211082 is a deficient number, since it is larger than the sum of its proper divisors (64154234).

128211082 is an equidigital number, since it uses as much as digits as its factorization.

128211082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16232.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 128211082 is about 11323.0332508564. The cubic root of 128211082 is about 504.2452955828.

The spelling of 128211082 in words is "one hundred twenty-eight million, two hundred eleven thousand, eighty-two".