345165187 has 2 divisors, whose sum is σ = 345165188. Its totient is φ = 345165186.

The previous prime is 345165179. The next prime is 345165251. The reversal of 345165187 is 781561543.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345165187 - 2³ = 345165179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345165157) 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, 172582593 + 172582594.

It is an arithmetic number, because the mean of its divisors is an integer number (172582594).

Almost surely, 2^345165187 is an apocalyptic number.

345165187 is a deficient number, since it is larger than the sum of its proper divisors (1).

345165187 is an equidigital number, since it uses as much as digits as its factorization.

345165187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 40.

The square root of 345165187 is about 18578.6217734255. The cubic root of 345165187 is about 701.4698278892.

The spelling of 345165187 in words is "three hundred forty-five million, one hundred sixty-five thousand, one hundred eighty-seven".