105315439 has 2 divisors, whose sum is σ = 105315440. Its totient is φ = 105315438.

The previous prime is 105315437. The next prime is 105315451. The reversal of 105315439 is 934513501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105315439 - 2¹ = 105315437 is a prime.

It is a super-2 number, since 2×105315439² = 22182683383525442, which contains 22 as substring.

Together with 105315437, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 105315439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105315433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52657719 + 52657720.

It is an arithmetic number, because the mean of its divisors is an integer number (52657720).

Almost surely, 2^105315439 is an apocalyptic number.

105315439 is a deficient number, since it is larger than the sum of its proper divisors (1).

105315439 is an equidigital number, since it uses as much as digits as its factorization.

105315439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 105315439 is about 10262.3310704732. The cubic root of 105315439 is about 472.2413526142.

The spelling of 105315439 in words is "one hundred five million, three hundred fifteen thousand, four hundred thirty-nine".