345479543 has 2 divisors, whose sum is σ = 345479544. Its totient is φ = 345479542.

The previous prime is 345479509. The next prime is 345479549. The reversal of 345479543 is 345974543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345479543 - 2⁶ = 345479479 is a prime.

It is a super-2 number, since 2×345479543² = 238712229262977698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345479494 and 345479503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345479549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172739771 + 172739772.

It is an arithmetic number, because the mean of its divisors is an integer number (172739772).

Almost surely, 2^345479543 is an apocalyptic number.

345479543 is a deficient number, since it is larger than the sum of its proper divisors (1).

345479543 is an equidigital number, since it uses as much as digits as its factorization.

345479543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 44.

The square root of 345479543 is about 18587.0800019799. The cubic root of 345479543 is about 701.6827156586.

The spelling of 345479543 in words is "three hundred forty-five million, four hundred seventy-nine thousand, five hundred forty-three".