105690943 has 2 divisors, whose sum is σ = 105690944. Its totient is φ = 105690942.

The previous prime is 105690941. The next prime is 105691009. The reversal of 105690943 is 349096501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105690943 - 2¹ = 105690941 is a prime.

It is a super-2 number, since 2×105690943² = 22341150864458498, which contains 22 as substring.

Together with 105690941, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105690941) 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, 52845471 + 52845472.

It is an arithmetic number, because the mean of its divisors is an integer number (52845472).

Almost surely, 2^105690943 is an apocalyptic number.

105690943 is a deficient number, since it is larger than the sum of its proper divisors (1).

105690943 is an equidigital number, since it uses as much as digits as its factorization.

105690943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 105690943 is about 10280.6100499922. The cubic root of 105690943 is about 472.8019484112.

The spelling of 105690943 in words is "one hundred five million, six hundred ninety thousand, nine hundred forty-three".