105089639 has 2 divisors, whose sum is σ = 105089640. Its totient is φ = 105089638.

The previous prime is 105089617. The next prime is 105089689. The reversal of 105089639 is 936980501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105089639 - 2¹² = 105085543 is a prime.

It is a super-2 number, since 2×105089639² = 22087664450300642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105089596 and 105089605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105089609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52544819 + 52544820.

It is an arithmetic number, because the mean of its divisors is an integer number (52544820).

Almost surely, 2^105089639 is an apocalyptic number.

105089639 is a deficient number, since it is larger than the sum of its proper divisors (1).

105089639 is an equidigital number, since it uses as much as digits as its factorization.

105089639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 105089639 is about 10251.3237681775. The cubic root of 105089639 is about 471.9036104402.

The spelling of 105089639 in words is "one hundred five million, eighty-nine thousand, six hundred thirty-nine".