128585319 has 8 divisors (see below), whose sum is σ = 172058352. Its totient is φ = 85417920.

The previous prime is 128585287. The next prime is 128585363. The reversal of 128585319 is 913585821.

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

It is not a de Polignac number, because 128585319 - 2⁵ = 128585287 is a prime.

It is a super-4 number, since 4×128585319⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128585419) 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, 75424 + ... + 77109.

It is an arithmetic number, because the mean of its divisors is an integer number (21507294).

Almost surely, 2^128585319 is an apocalyptic number.

128585319 is a deficient number, since it is larger than the sum of its proper divisors (43473033).

128585319 is a wasteful number, since it uses less digits than its factorization.

128585319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152817.

The product of its digits is 86400, while the sum is 42.

The square root of 128585319 is about 11339.5466840611. The cubic root of 128585319 is about 504.7354350576.

The spelling of 128585319 in words is "one hundred twenty-eight million, five hundred eighty-five thousand, three hundred nineteen".