105142343 has 2 divisors, whose sum is σ = 105142344. Its totient is φ = 105142342.

The previous prime is 105142339. The next prime is 105142379. The reversal of 105142343 is 343241501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105142343 - 2² = 105142339 is a prime.

It is a super-2 number, since 2×105142343² = 22109824583059298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105132343) 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, 52571171 + 52571172.

It is an arithmetic number, because the mean of its divisors is an integer number (52571172).

Almost surely, 2^105142343 is an apocalyptic number.

105142343 is a deficient number, since it is larger than the sum of its proper divisors (1).

105142343 is an equidigital number, since it uses as much as digits as its factorization.

105142343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 105142343 is about 10253.8940408023. The cubic root of 105142343 is about 471.9824861236.

Adding to 105142343 its reverse (343241501), we get a palindrome (448383844).

The spelling of 105142343 in words is "one hundred five million, one hundred forty-two thousand, three hundred forty-three".