345003187 has 2 divisors, whose sum is σ = 345003188. Its totient is φ = 345003186.

The previous prime is 345003163. The next prime is 345003221. The reversal of 345003187 is 781300543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345003187 - 2¹⁹ = 344478899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345003587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172501593 + 172501594.

It is an arithmetic number, because the mean of its divisors is an integer number (172501594).

Almost surely, 2^345003187 is an apocalyptic number.

345003187 is a deficient number, since it is larger than the sum of its proper divisors (1).

345003187 is an equidigital number, since it uses as much as digits as its factorization.

345003187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 345003187 is about 18574.2614119647. The cubic root of 345003187 is about 701.3600679836.

The spelling of 345003187 in words is "three hundred forty-five million, three thousand, one hundred eighty-seven".