128151602 has 4 divisors (see below), whose sum is σ = 192227406. Its totient is φ = 64075800.

The previous prime is 128151601. The next prime is 128151619. The reversal of 128151602 is 206151821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 206151821 = 53 ⋅3889657.

It can be written as a sum of positive squares in only one way, i.e., 120802081 + 7349521 = 10991^2 + 2711^2 .

It is not an unprimeable number, because it can be changed into a prime (128151601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32037899 + ... + 32037902.

Almost surely, 2^128151602 is an apocalyptic number.

128151602 is a deficient number, since it is larger than the sum of its proper divisors (64075804).

128151602 is an equidigital number, since it uses as much as digits as its factorization.

128151602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64075803.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 128151602 is about 11320.4064414667. The cubic root of 128151602 is about 504.1673066161.

The spelling of 128151602 in words is "one hundred twenty-eight million, one hundred fifty-one thousand, six hundred two".