340213459 has 2 divisors, whose sum is σ = 340213460. Its totient is φ = 340213458.

The previous prime is 340213457. The next prime is 340213477. The reversal of 340213459 is 954312043.

It is a weak prime.

It is an emirp because it is prime and its reverse (954312043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340213459 - 2¹ = 340213457 is a prime.

Together with 340213457, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 340213459.

It is not a weakly prime, because it can be changed into another prime (340213451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170106729 + 170106730.

It is an arithmetic number, because the mean of its divisors is an integer number (170106730).

Almost surely, 2^340213459 is an apocalyptic number.

340213459 is a deficient number, since it is larger than the sum of its proper divisors (1).

340213459 is an equidigital number, since it uses as much as digits as its factorization.

340213459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 340213459 is about 18444.8762262044. The cubic root of 340213459 is about 698.0992372649.

It can be divided in two parts, 3402 and 13459, that added together give a palindrome (16861).

The spelling of 340213459 in words is "three hundred forty million, two hundred thirteen thousand, four hundred fifty-nine".