345544211 has 2 divisors, whose sum is σ = 345544212. Its totient is φ = 345544210.

The previous prime is 345544163. The next prime is 345544217. The reversal of 345544211 is 112445543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345544211 - 2²² = 341349907 is a prime.

It is a super-2 number, since 2×345544211² = 238801603511225042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345544217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172772105 + 172772106.

It is an arithmetic number, because the mean of its divisors is an integer number (172772106).

Almost surely, 2^345544211 is an apocalyptic number.

345544211 is a deficient number, since it is larger than the sum of its proper divisors (1).

345544211 is an equidigital number, since it uses as much as digits as its factorization.

345544211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 29.

The square root of 345544211 is about 18588.8195160424. The cubic root of 345544211 is about 701.7264940220.

Adding to 345544211 its reverse (112445543), we get a palindrome (457989754).

The spelling of 345544211 in words is "three hundred forty-five million, five hundred forty-four thousand, two hundred eleven".