105021347 has 2 divisors, whose sum is σ = 105021348. Its totient is φ = 105021346.

The previous prime is 105021331. The next prime is 105021373. The reversal of 105021347 is 743120501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105021347 - 2⁴ = 105021331 is a prime.

It is a super-2 number, since 2×105021347² = 22058966651388818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105021307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52510673 + 52510674.

It is an arithmetic number, because the mean of its divisors is an integer number (52510674).

Almost surely, 2^105021347 is an apocalyptic number.

105021347 is a deficient number, since it is larger than the sum of its proper divisors (1).

105021347 is an equidigital number, since it uses as much as digits as its factorization.

105021347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 105021347 is about 10247.9923399659. The cubic root of 105021347 is about 471.8013668537.

Adding to 105021347 its reverse (743120501), we get a palindrome (848141848).

The spelling of 105021347 in words is "one hundred five million, twenty-one thousand, three hundred forty-seven".