42106343 has 2 divisors, whose sum is σ = 42106344. Its totient is φ = 42106342.

The previous prime is 42106291. The next prime is 42106369. The reversal of 42106343 is 34360124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42106343 - 2⁶ = 42106279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42102343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21053171 + 21053172.

It is an arithmetic number, because the mean of its divisors is an integer number (21053172).

Almost surely, 2^42106343 is an apocalyptic number.

42106343 is a deficient number, since it is larger than the sum of its proper divisors (1).

42106343 is an equidigital number, since it uses as much as digits as its factorization.

42106343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 42106343 is about 6488.9400521195. The cubic root of 42106343 is about 347.8957911212.

Adding to 42106343 its reverse (34360124), we get a palindrome (76466467).

The spelling of 42106343 in words is "forty-two million, one hundred six thousand, three hundred forty-three".