340346651 has 2 divisors, whose sum is σ = 340346652. Its totient is φ = 340346650.

The previous prime is 340346623. The next prime is 340346653. The reversal of 340346651 is 156643043.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340346651 is a prime.

Together with 340346653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340346653) 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, 170173325 + 170173326.

It is an arithmetic number, because the mean of its divisors is an integer number (170173326).

Almost surely, 2^340346651 is an apocalyptic number.

340346651 is a deficient number, since it is larger than the sum of its proper divisors (1).

340346651 is an equidigital number, since it uses as much as digits as its factorization.

340346651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 340346651 is about 18448.4864148797. The cubic root of 340346651 is about 698.1903262561.

Adding to 340346651 its reverse (156643043), we get a palindrome (496989694).

The spelling of 340346651 in words is "three hundred forty million, three hundred forty-six thousand, six hundred fifty-one".