128201162 has 4 divisors (see below), whose sum is σ = 192301746. Its totient is φ = 64100580.

The previous prime is 128201153. The next prime is 128201237. The reversal of 128201162 is 261102821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81018001 + 47183161 = 9001^2 + 6869^2 .

It is an unprimeable number.

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, 32050289 + ... + 32050292.

Almost surely, 2^128201162 is an apocalyptic number.

128201162 is a deficient number, since it is larger than the sum of its proper divisors (64100584).

128201162 is an equidigital number, since it uses as much as digits as its factorization.

128201162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64100583.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 128201162 is about 11322.5951972152. The cubic root of 128201162 is about 504.2322903567.

Adding to 128201162 its reverse (261102821), we get a palindrome (389303983).

The spelling of 128201162 in words is "one hundred twenty-eight million, two hundred one thousand, one hundred sixty-two".