105207143 has 2 divisors, whose sum is σ = 105207144. Its totient is φ = 105207142.

The previous prime is 105207133. The next prime is 105207229. The reversal of 105207143 is 341702501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105207143 - 2⁶ = 105207079 is a prime.

It is a super-2 number, since 2×105207143² = 22137085876444898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105207133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52603571 + 52603572.

It is an arithmetic number, because the mean of its divisors is an integer number (52603572).

Almost surely, 2^105207143 is an apocalyptic number.

105207143 is a deficient number, since it is larger than the sum of its proper divisors (1).

105207143 is an equidigital number, since it uses as much as digits as its factorization.

105207143 is an evil number, because the sum of its binary digits is even.

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

The square root of 105207143 is about 10257.0533292949. The cubic root of 105207143 is about 472.0794283045.

Adding to 105207143 its reverse (341702501), we get a palindrome (446909644).

The spelling of 105207143 in words is "one hundred five million, two hundred seven thousand, one hundred forty-three".