128954713 has 2 divisors, whose sum is σ = 128954714. Its totient is φ = 128954712.

The previous prime is 128954711. The next prime is 128954743. The reversal of 128954713 is 317459821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122589184 + 6365529 = 11072^2 + 2523^2 .

It is a cyclic number.

It is not a de Polignac number, because 128954713 - 2¹ = 128954711 is a prime.

Together with 128954711, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (128954711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64477356 + 64477357.

It is an arithmetic number, because the mean of its divisors is an integer number (64477357).

Almost surely, 2^128954713 is an apocalyptic number.

It is an amenable number.

128954713 is a deficient number, since it is larger than the sum of its proper divisors (1).

128954713 is an equidigital number, since it uses as much as digits as its factorization.

128954713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 128954713 is about 11355.8228675865. The cubic root of 128954713 is about 505.2182998954.

The spelling of 128954713 in words is "one hundred twenty-eight million, nine hundred fifty-four thousand, seven hundred thirteen".