128219467 has 8 divisors (see below), whose sum is σ = 138616400. Its totient is φ = 118187424.

The previous prime is 128219461. The next prime is 128219473. The reversal of 128219467 is 764912821.

It is an interprime number because it is at equal distance from previous prime (128219461) and next prime (128219473).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128219467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128219461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90492 + ... + 91897.

It is an arithmetic number, because the mean of its divisors is an integer number (17327050).

Almost surely, 2^128219467 is an apocalyptic number.

128219467 is a deficient number, since it is larger than the sum of its proper divisors (10396933).

128219467 is a wasteful number, since it uses less digits than its factorization.

128219467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182445.

The product of its digits is 48384, while the sum is 40.

The square root of 128219467 is about 11323.4035077798. The cubic root of 128219467 is about 504.2562878844.

The spelling of 128219467 in words is "one hundred twenty-eight million, two hundred nineteen thousand, four hundred sixty-seven".