345247203 has 48 divisors (see below), whose sum is σ = 563897600. Its totient is φ = 184011264.

The previous prime is 345247193. The next prime is 345247213. The reversal of 345247203 is 302742543.

It is an interprime number because it is at equal distance from previous prime (345247193) and next prime (345247213).

It is not a de Polignac number, because 345247203 - 2⁴ = 345247187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345247213) 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 in 47 ways as a sum of consecutive naturals, for example, 989073 + ... + 989421.

Almost surely, 2^345247203 is an apocalyptic number.

345247203 is a deficient number, since it is larger than the sum of its proper divisors (218650397).

345247203 is a wasteful number, since it uses less digits than its factorization.

345247203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 345247203 is about 18580.8289104658. The cubic root of 345247203 is about 701.5253831184.

Adding to 345247203 its reverse (302742543), we get a palindrome (647989746).

The spelling of 345247203 in words is "three hundred forty-five million, two hundred forty-seven thousand, two hundred three".