128051582 has 8 divisors (see below), whose sum is σ = 203376096. Its totient is φ = 60259552.

The previous prime is 128051579. The next prime is 128051587. The reversal of 128051582 is 285150821.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128051587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1883078 + ... + 1883145.

It is an arithmetic number, because the mean of its divisors is an integer number (25422012).

Almost surely, 2^128051582 is an apocalyptic number.

128051582 is a deficient number, since it is larger than the sum of its proper divisors (75324514).

128051582 is a wasteful number, since it uses less digits than its factorization.

128051582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766242.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 128051582 is about 11315.9878932420. The cubic root of 128051582 is about 504.0361079993.

The spelling of 128051582 in words is "one hundred twenty-eight million, fifty-one thousand, five hundred eighty-two".