128001419 has 8 divisors (see below), whose sum is σ = 157540320. Its totient is φ = 101275776.

The previous prime is 128001403. The next prime is 128001421. The reversal of 128001419 is 914100821.

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

It is not a de Polignac number, because 128001419 - 2⁴ = 128001403 is a prime.

It is a super-2 number, since 2×128001419² = 32768726532027122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128001439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703214 + ... + 703395.

It is an arithmetic number, because the mean of its divisors is an integer number (19692540).

Almost surely, 2^128001419 is an apocalyptic number.

128001419 is a deficient number, since it is larger than the sum of its proper divisors (29538901).

128001419 is a wasteful number, since it uses less digits than its factorization.

128001419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406629.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 128001419 is about 11313.7712103436. The cubic root of 128001419 is about 503.9702822719.

The spelling of 128001419 in words is "one hundred twenty-eight million, one thousand, four hundred nineteen".