345623543 has 2 divisors, whose sum is σ = 345623544. Its totient is φ = 345623542.

The previous prime is 345623519. The next prime is 345623567. The reversal of 345623543 is 345326543.

It is a balanced prime because it is at equal distance from previous prime (345623519) and next prime (345623567).

It is a cyclic number.

It is not a de Polignac number, because 345623543 - 2⁸ = 345623287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345623503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172811771 + 172811772.

It is an arithmetic number, because the mean of its divisors is an integer number (172811772).

Almost surely, 2^345623543 is an apocalyptic number.

345623543 is a deficient number, since it is larger than the sum of its proper divisors (1).

345623543 is an equidigital number, since it uses as much as digits as its factorization.

345623543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 35.

The square root of 345623543 is about 18590.9532568935. The cubic root of 345623543 is about 701.7801920291.

The spelling of 345623543 in words is "three hundred forty-five million, six hundred twenty-three thousand, five hundred forty-three".