345351211 has 2 divisors, whose sum is σ = 345351212. Its totient is φ = 345351210.

The previous prime is 345351143. The next prime is 345351221. The reversal of 345351211 is 112153543.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345351211 - 2¹⁵ = 345318443 is a prime.

It is not a weakly prime, because it can be changed into another prime (345351221) 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, 172675605 + 172675606.

It is an arithmetic number, because the mean of its divisors is an integer number (172675606).

Almost surely, 2^345351211 is an apocalyptic number.

345351211 is a deficient number, since it is larger than the sum of its proper divisors (1).

345351211 is an equidigital number, since it uses as much as digits as its factorization.

345351211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 345351211 is about 18583.6274984191. The cubic root of 345351211 is about 701.5958224304.

The spelling of 345351211 in words is "three hundred forty-five million, three hundred fifty-one thousand, two hundred eleven".