345494543 has 2 divisors, whose sum is σ = 345494544. Its totient is φ = 345494542.

The previous prime is 345494507. The next prime is 345494549.

345494543 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 345494543 - 2²⁰ = 344445967 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 345494543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345494549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172747271 + 172747272.

It is an arithmetic number, because the mean of its divisors is an integer number (172747272).

Almost surely, 2^345494543 is an apocalyptic number.

345494543 is a deficient number, since it is larger than the sum of its proper divisors (1).

345494543 is an equidigital number, since it uses as much as digits as its factorization.

345494543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 41.

The square root of 345494543 is about 18587.4835036914. The cubic root of 345494543 is about 701.6928707108.

The spelling of 345494543 in words is "three hundred forty-five million, four hundred ninety-four thousand, five hundred forty-three".