128752219 has 8 divisors (see below), whose sum is σ = 131973120. Its totient is φ = 125566056.

The previous prime is 128752201. The next prime is 128752231. The reversal of 128752219 is 912257821.

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

It is a cyclic number.

It is not a de Polignac number, because 128752219 - 2¹³ = 128744027 is a prime.

It is a super-2 number, since 2×128752219² = 33154267794847922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128752249) 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, 1099 + ... + 16084.

It is an arithmetic number, because the mean of its divisors is an integer number (16496640).

Almost surely, 2^128752219 is an apocalyptic number.

128752219 is a deficient number, since it is larger than the sum of its proper divisors (3220901).

128752219 is a wasteful number, since it uses less digits than its factorization.

128752219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17369.

The product of its digits is 20160, while the sum is 37.

The square root of 128752219 is about 11346.9034983118. The cubic root of 128752219 is about 504.9537179426.

The spelling of 128752219 in words is "one hundred twenty-eight million, seven hundred fifty-two thousand, two hundred nineteen".