128542182 has 32 divisors (see below), whose sum is σ = 279352320. Its totient is φ = 39281760.

The previous prime is 128542177. The next prime is 128542187. The reversal of 128542182 is 281245821.

It is an interprime number because it is at equal distance from previous prime (128542177) and next prime (128542187).

It is a super-2 number, since 2×128542182² = 33046185106642248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128542187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14653 + ... + 21720.

It is an arithmetic number, because the mean of its divisors is an integer number (8729760).

Almost surely, 2^128542182 is an apocalyptic number.

128542182 is an abundant number, since it is smaller than the sum of its proper divisors (150810138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128542182 is a wasteful number, since it uses less digits than its factorization.

128542182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36428.

The product of its digits is 10240, while the sum is 33.

The square root of 128542182 is about 11337.6444643497. The cubic root of 128542182 is about 504.6789869140.

The spelling of 128542182 in words is "one hundred twenty-eight million, five hundred forty-two thousand, one hundred eighty-two".