345442003 has 2 divisors, whose sum is σ = 345442004. Its totient is φ = 345442002.

The previous prime is 345442001. The next prime is 345442033. The reversal of 345442003 is 300244543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345442003 - 2¹ = 345442001 is a prime.

Together with 345442001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (345442001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172721001 + 172721002.

It is an arithmetic number, because the mean of its divisors is an integer number (172721002).

Almost surely, 2^345442003 is an apocalyptic number.

345442003 is a deficient number, since it is larger than the sum of its proper divisors (1).

345442003 is an equidigital number, since it uses as much as digits as its factorization.

345442003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 345442003 is about 18586.0701333014. The cubic root of 345442003 is about 701.6572996595.

Adding to 345442003 its reverse (300244543), we get a palindrome (645686546).

The spelling of 345442003 in words is "three hundred forty-five million, four hundred forty-two thousand, three".