128849183 has 8 divisors (see below), whose sum is σ = 132231120. Its totient is φ = 125478720.

The previous prime is 128849159. The next prime is 128849191. The reversal of 128849183 is 381948821.

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-128849183 is a prime.

It is a super-2 number, since 2×128849183² = 33204223919534978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128849143) 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, 22841 + ... + 27917.

It is an arithmetic number, because the mean of its divisors is an integer number (16528890).

Almost surely, 2^128849183 is an apocalyptic number.

128849183 is a deficient number, since it is larger than the sum of its proper divisors (3381937).

128849183 is an equidigital number, since it uses as much as digits as its factorization.

128849183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5737.

The product of its digits is 110592, while the sum is 44.

The square root of 128849183 is about 11351.1754016930. The cubic root of 128849183 is about 505.0804472696.

The spelling of 128849183 in words is "one hundred twenty-eight million, eight hundred forty-nine thousand, one hundred eighty-three".