345140203 has 2 divisors, whose sum is σ = 345140204. Its totient is φ = 345140202.

The previous prime is 345140189. The next prime is 345140207. The reversal of 345140203 is 302041543.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345140203 is a prime.

It is not a weakly prime, because it can be changed into another prime (345140207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172570101 + 172570102.

It is an arithmetic number, because the mean of its divisors is an integer number (172570102).

Almost surely, 2^345140203 is an apocalyptic number.

345140203 is a deficient number, since it is larger than the sum of its proper divisors (1).

345140203 is an equidigital number, since it uses as much as digits as its factorization.

345140203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 345140203 is about 18577.9493755366. The cubic root of 345140203 is about 701.4529027128.

Adding to 345140203 its reverse (302041543), we get a palindrome (647181746).

The spelling of 345140203 in words is "three hundred forty-five million, one hundred forty thousand, two hundred three".