345221141 has 2 divisors, whose sum is σ = 345221142. Its totient is φ = 345221140.

The previous prime is 345221117. The next prime is 345221197. The reversal of 345221141 is 141122543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344250916 + 970225 = 18554^2 + 985^2 .

It is an emirp because it is prime and its reverse (141122543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345221141 - 2⁶ = 345221077 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 (345229141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172610570 + 172610571.

It is an arithmetic number, because the mean of its divisors is an integer number (172610571).

Almost surely, 2^345221141 is an apocalyptic number.

It is an amenable number.

345221141 is a deficient number, since it is larger than the sum of its proper divisors (1).

345221141 is an equidigital number, since it uses as much as digits as its factorization.

345221141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 345221141 is about 18580.1275829850. The cubic root of 345221141 is about 701.5077304390.

Adding to 345221141 its reverse (141122543), we get a palindrome (486343684).

The spelling of 345221141 in words is "three hundred forty-five million, two hundred twenty-one thousand, one hundred forty-one".