340642201 has 2 divisors, whose sum is σ = 340642202. Its totient is φ = 340642200.

The previous prime is 340642199. The next prime is 340642217. The reversal of 340642201 is 102246043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172265625 + 168376576 = 13125^2 + 12976^2 .

It is a cyclic number.

It is not a de Polignac number, because 340642201 - 2¹ = 340642199 is a prime.

Together with 340642199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (340642231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170321100 + 170321101.

It is an arithmetic number, because the mean of its divisors is an integer number (170321101).

Almost surely, 2^340642201 is an apocalyptic number.

It is an amenable number.

340642201 is a deficient number, since it is larger than the sum of its proper divisors (1).

340642201 is an equidigital number, since it uses as much as digits as its factorization.

340642201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 340642201 is about 18456.4948188978. The cubic root of 340642201 is about 698.3923658032.

Adding to 340642201 its reverse (102246043), we get a palindrome (442888244).

The spelling of 340642201 in words is "three hundred forty million, six hundred forty-two thousand, two hundred one".