345354019 has 2 divisors, whose sum is σ = 345354020. Its totient is φ = 345354018.

The previous prime is 345353977. The next prime is 345354059. The reversal of 345354019 is 910453543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345354019 - 2⁹ = 345353507 is a prime.

It is a super-2 number, since 2×345354019² = 238538796878904722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345354059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172677009 + 172677010.

It is an arithmetic number, because the mean of its divisors is an integer number (172677010).

Almost surely, 2^345354019 is an apocalyptic number.

345354019 is a deficient number, since it is larger than the sum of its proper divisors (1).

345354019 is an equidigital number, since it uses as much as digits as its factorization.

345354019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 345354019 is about 18583.7030486391. The cubic root of 345354019 is about 701.5977239494.

The spelling of 345354019 in words is "three hundred forty-five million, three hundred fifty-four thousand, nineteen".