128604743 has 2 divisors, whose sum is σ = 128604744. Its totient is φ = 128604742.

The previous prime is 128604739. The next prime is 128604767. The reversal of 128604743 is 347406821.

It is a weak prime.

It is an emirp because it is prime and its reverse (347406821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128604743 - 2² = 128604739 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128604703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64302371 + 64302372.

It is an arithmetic number, because the mean of its divisors is an integer number (64302372).

Almost surely, 2^128604743 is an apocalyptic number.

128604743 is a deficient number, since it is larger than the sum of its proper divisors (1).

128604743 is an equidigital number, since it uses as much as digits as its factorization.

128604743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 128604743 is about 11340.4031233462. The cubic root of 128604743 is about 504.7608487610.

The spelling of 128604743 in words is "one hundred twenty-eight million, six hundred four thousand, seven hundred forty-three".