345104161 has 2 divisors, whose sum is σ = 345104162. Its totient is φ = 345104160.

The previous prime is 345104159. The next prime is 345104171. The reversal of 345104161 is 161401543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337089600 + 8014561 = 18360^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 345104161 - 2¹ = 345104159 is a prime.

Together with 345104159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (345104141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172552080 + 172552081.

It is an arithmetic number, because the mean of its divisors is an integer number (172552081).

Almost surely, 2^345104161 is an apocalyptic number.

It is an amenable number.

345104161 is a deficient number, since it is larger than the sum of its proper divisors (1).

345104161 is an equidigital number, since it uses as much as digits as its factorization.

345104161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 345104161 is about 18576.9793292666. The cubic root of 345104161 is about 701.4284849589.

The spelling of 345104161 in words is "three hundred forty-five million, one hundred four thousand, one hundred sixty-one".