128466473 has 2 divisors, whose sum is σ = 128466474. Its totient is φ = 128466472.

The previous prime is 128466461. The next prime is 128466497. The reversal of 128466473 is 374664821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128436889 + 29584 = 11333^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 128466473 - 2¹² = 128462377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128466473.

It is not a weakly prime, because it can be changed into another prime (128466673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64233236 + 64233237.

It is an arithmetic number, because the mean of its divisors is an integer number (64233237).

Almost surely, 2^128466473 is an apocalyptic number.

It is an amenable number.

128466473 is a deficient number, since it is larger than the sum of its proper divisors (1).

128466473 is an equidigital number, since it uses as much as digits as its factorization.

128466473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The square root of 128466473 is about 11334.3051397075. The cubic root of 128466473 is about 504.5798852166.

The spelling of 128466473 in words is "one hundred twenty-eight million, four hundred sixty-six thousand, four hundred seventy-three".