• 128047² = 16396034209 is an anagram of the next square 128048² = 16396290304.

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128047 has 2 divisors, whose sum is σ = 128048. Its totient is φ = 128046.

The previous prime is 128033. The next prime is 128053. The reversal of 128047 is 740821.

128047 is nontrivially palindromic in base 14.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128047 - 2¹⁵ = 95279 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 (128147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64023 + 64024.

It is an arithmetic number, because the mean of its divisors is an integer number (64024).

2¹²⁸⁰⁴⁷ is an apocalyptic number.

128047 is a deficient number, since it is larger than the sum of its proper divisors (1).

128047 is an equidigital number, since it uses as much as digits as its factorization.

128047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 128047 is about 357.8365548683. The cubic root of 128047 is about 50.4030096044.

Adding to 128047 its reverse (740821), we get a palindrome (868868).

The spelling of 128047 in words is "one hundred twenty-eight thousand, forty-seven".