340131443 has 2 divisors, whose sum is σ = 340131444. Its totient is φ = 340131442.

The previous prime is 340131437. The next prime is 340131479. The reversal of 340131443 is 344131043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340131443 - 2²⁶ = 273022579 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (340131403) 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, 170065721 + 170065722.

It is an arithmetic number, because the mean of its divisors is an integer number (170065722).

Almost surely, 2^340131443 is an apocalyptic number.

340131443 is a deficient number, since it is larger than the sum of its proper divisors (1).

340131443 is an equidigital number, since it uses as much as digits as its factorization.

340131443 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 340131443 is about 18442.6528189412. The cubic root of 340131443 is about 698.0431353216.

Adding to 340131443 its reverse (344131043), we get a palindrome (684262486).

The spelling of 340131443 in words is "three hundred forty million, one hundred thirty-one thousand, four hundred forty-three".