341543021 has 2 divisors, whose sum is σ = 341543022. Its totient is φ = 341543020.

The previous prime is 341543017. The next prime is 341543053. The reversal of 341543021 is 120345143.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227587396 + 113955625 = 15086^2 + 10675^2 .

It is a cyclic number.

It is not a de Polignac number, because 341543021 - 2² = 341543017 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (341543071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170771510 + 170771511.

It is an arithmetic number, because the mean of its divisors is an integer number (170771511).

Almost surely, 2^341543021 is an apocalyptic number.

It is an amenable number.

341543021 is a deficient number, since it is larger than the sum of its proper divisors (1).

341543021 is an equidigital number, since it uses as much as digits as its factorization.

341543021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 341543021 is about 18480.8825817384. The cubic root of 341543021 is about 699.0074511265.

Adding to 341543021 its reverse (120345143), we get a palindrome (461888164).

The spelling of 341543021 in words is "three hundred forty-one million, five hundred forty-three thousand, twenty-one".