345191003 has 2 divisors, whose sum is σ = 345191004. Its totient is φ = 345191002.

The previous prime is 345190999. The next prime is 345191047. The reversal of 345191003 is 300191543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345191003 - 2² = 345190999 is a prime.

It is not a weakly prime, because it can be changed into another prime (345191503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172595501 + 172595502.

It is an arithmetic number, because the mean of its divisors is an integer number (172595502).

Almost surely, 2^345191003 is an apocalyptic number.

345191003 is a deficient number, since it is larger than the sum of its proper divisors (1).

345191003 is an equidigital number, since it uses as much as digits as its factorization.

345191003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 345191003 is about 18579.3165374833. The cubic root of 345191003 is about 701.4873158383.

The spelling of 345191003 in words is "three hundred forty-five million, one hundred ninety-one thousand, three".