108123643 has 2 divisors, whose sum is σ = 108123644. Its totient is φ = 108123642.

The previous prime is 108123637. The next prime is 108123679. The reversal of 108123643 is 346321801.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108123643 is a prime.

It is not a weakly prime, because it can be changed into another prime (108123143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54061821 + 54061822.

It is an arithmetic number, because the mean of its divisors is an integer number (54061822).

Almost surely, 2^108123643 is an apocalyptic number.

108123643 is a deficient number, since it is larger than the sum of its proper divisors (1).

108123643 is an equidigital number, since it uses as much as digits as its factorization.

108123643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 108123643 is about 10398.2519203951. The cubic root of 108123643 is about 476.4019787164.

The spelling of 108123643 in words is "one hundred eight million, one hundred twenty-three thousand, six hundred forty-three".