345188171 has 2 divisors, whose sum is σ = 345188172. Its totient is φ = 345188170.

The previous prime is 345188161. The next prime is 345188183. The reversal of 345188171 is 171881543.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345188171 is a prime.

It is a super-3 number, since 3×345188171³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (345188101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172594085 + 172594086.

It is an arithmetic number, because the mean of its divisors is an integer number (172594086).

Almost surely, 2^345188171 is an apocalyptic number.

345188171 is a deficient number, since it is larger than the sum of its proper divisors (1).

345188171 is an equidigital number, since it uses as much as digits as its factorization.

345188171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 38.

The square root of 345188171 is about 18579.2403235439. The cubic root of 345188171 is about 701.4853974631.

The spelling of 345188171 in words is "three hundred forty-five million, one hundred eighty-eight thousand, one hundred seventy-one".