345889543 has 2 divisors, whose sum is σ = 345889544. Its totient is φ = 345889542.

The previous prime is 345889513. The next prime is 345889559. The reversal of 345889543 is 345988543.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345889543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345889513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172944771 + 172944772.

It is an arithmetic number, because the mean of its divisors is an integer number (172944772).

Almost surely, 2^345889543 is an apocalyptic number.

345889543 is a deficient number, since it is larger than the sum of its proper divisors (1).

345889543 is an equidigital number, since it uses as much as digits as its factorization.

345889543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 49.

The square root of 345889543 is about 18598.1058981822. The cubic root of 345889543 is about 701.9601813709.

The spelling of 345889543 in words is "three hundred forty-five million, eight hundred eighty-nine thousand, five hundred forty-three".