340155443 has 2 divisors, whose sum is σ = 340155444. Its totient is φ = 340155442.

The previous prime is 340155433. The next prime is 340155457. The reversal of 340155443 is 344551043.

It is a weak prime.

It is an emirp because it is prime and its reverse (344551043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340155443 - 2⁴ = 340155427 is a prime.

It is not a weakly prime, because it can be changed into another prime (340155433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170077721 + 170077722.

It is an arithmetic number, because the mean of its divisors is an integer number (170077722).

Almost surely, 2^340155443 is an apocalyptic number.

340155443 is a deficient number, since it is larger than the sum of its proper divisors (1).

340155443 is an equidigital number, since it uses as much as digits as its factorization.

340155443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 340155443 is about 18443.3034730766. The cubic root of 340155443 is about 698.0595531326.

Subtracting from 340155443 its product of nonzero digits (14400), we obtain a palindrome (340141043).

The spelling of 340155443 in words is "three hundred forty million, one hundred fifty-five thousand, four hundred forty-three".