128746543 has 2 divisors, whose sum is σ = 128746544. Its totient is φ = 128746542.

The previous prime is 128746531. The next prime is 128746561. The reversal of 128746543 is 345647821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128746543 - 2⁵ = 128746511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128746496 and 128746505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128746043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64373271 + 64373272.

It is an arithmetic number, because the mean of its divisors is an integer number (64373272).

Almost surely, 2^128746543 is an apocalyptic number.

128746543 is a deficient number, since it is larger than the sum of its proper divisors (1).

128746543 is an equidigital number, since it uses as much as digits as its factorization.

128746543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 40.

The square root of 128746543 is about 11346.6533832668. The cubic root of 128746543 is about 504.9462975930.

The spelling of 128746543 in words is "one hundred twenty-eight million, seven hundred forty-six thousand, five hundred forty-three".