345112169 has 2 divisors, whose sum is σ = 345112170. Its totient is φ = 345112168.

The previous prime is 345112139. The next prime is 345112177. The reversal of 345112169 is 961211543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342694144 + 2418025 = 18512^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 345112169 - 2¹⁶ = 345046633 is a prime.

It is a super-2 number, since 2×345112169² = 238204818383769122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345112139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172556084 + 172556085.

It is an arithmetic number, because the mean of its divisors is an integer number (172556085).

Almost surely, 2^345112169 is an apocalyptic number.

It is an amenable number.

345112169 is a deficient number, since it is larger than the sum of its proper divisors (1).

345112169 is an equidigital number, since it uses as much as digits as its factorization.

345112169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 32.

The square root of 345112169 is about 18577.1948635955. The cubic root of 345112169 is about 701.4339103700.

The spelling of 345112169 in words is "three hundred forty-five million, one hundred twelve thousand, one hundred sixty-nine".