105128339 has 2 divisors, whose sum is σ = 105128340. Its totient is φ = 105128338.

The previous prime is 105128329. The next prime is 105128369. The reversal of 105128339 is 933821501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105128339 is a prime.

It is a super-2 number, since 2×105128339² = 22103935321797842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105128329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52564169 + 52564170.

It is an arithmetic number, because the mean of its divisors is an integer number (52564170).

Almost surely, 2^105128339 is an apocalyptic number.

105128339 is a deficient number, since it is larger than the sum of its proper divisors (1).

105128339 is an equidigital number, since it uses as much as digits as its factorization.

105128339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 105128339 is about 10253.2111555356. The cubic root of 105128339 is about 471.9615306074.

The spelling of 105128339 in words is "one hundred five million, one hundred twenty-eight thousand, three hundred thirty-nine".