105047939 has 2 divisors, whose sum is σ = 105047940. Its totient is φ = 105047938.

The previous prime is 105047911. The next prime is 105047963. The reversal of 105047939 is 939740501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105047939 is a prime.

It is a super-2 number, since 2×105047939² = 22070138976295442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105047989) 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, 52523969 + 52523970.

It is an arithmetic number, because the mean of its divisors is an integer number (52523970).

Almost surely, 2^105047939 is an apocalyptic number.

105047939 is a deficient number, since it is larger than the sum of its proper divisors (1).

105047939 is an equidigital number, since it uses as much as digits as its factorization.

105047939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 105047939 is about 10249.2896827048. The cubic root of 105047939 is about 471.8411844194.

The spelling of 105047939 in words is "one hundred five million, forty-seven thousand, nine hundred thirty-nine".