105136939 has 2 divisors, whose sum is σ = 105136940. Its totient is φ = 105136938.

The previous prime is 105136909. The next prime is 105136949. The reversal of 105136939 is 939631501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105136939 - 2¹³ = 105128747 is a prime.

It is a super-2 number, since 2×105136939² = 22107551884579442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105136898 and 105136907.

It is not a weakly prime, because it can be changed into another prime (105136909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52568469 + 52568470.

It is an arithmetic number, because the mean of its divisors is an integer number (52568470).

Almost surely, 2^105136939 is an apocalyptic number.

105136939 is a deficient number, since it is larger than the sum of its proper divisors (1).

105136939 is an equidigital number, since it uses as much as digits as its factorization.

105136939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 105136939 is about 10253.6305277692. The cubic root of 105136939 is about 471.9743998253.

The spelling of 105136939 in words is "one hundred five million, one hundred thirty-six thousand, nine hundred thirty-nine".