346191161 has 2 divisors, whose sum is σ = 346191162. Its totient is φ = 346191160.

The previous prime is 346191133. The next prime is 346191163. The reversal of 346191161 is 161191643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340218025 + 5973136 = 18445^2 + 2444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346191161 is a prime.

Together with 346191163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (346191163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173095580 + 173095581.

It is an arithmetic number, because the mean of its divisors is an integer number (173095581).

Almost surely, 2^346191161 is an apocalyptic number.

It is an amenable number.

346191161 is a deficient number, since it is larger than the sum of its proper divisors (1).

346191161 is an equidigital number, since it uses as much as digits as its factorization.

346191161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 346191161 is about 18606.2129677159. The cubic root of 346191161 is about 702.1641600866.

The spelling of 346191161 in words is "three hundred forty-six million, one hundred ninety-one thousand, one hundred sixty-one".