164255128 has 16 divisors (see below), whose sum is σ = 308115000. Its totient is φ = 82091136.

The previous prime is 164255089. The next prime is 164255129. The reversal of 164255128 is 821552461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 164255093 and 164255102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164255129) 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 in 3 ways as a sum of consecutive naturals, for example, 30288 + ... + 35296.

Almost surely, 2^164255128 is an apocalyptic number.

It is an amenable number.

164255128 is a deficient number, since it is larger than the sum of its proper divisors (143859872).

164255128 is a wasteful number, since it uses less digits than its factorization.

164255128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114 (or 9110 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 164255128 is about 12816.2056787491. The cubic root of 164255128 is about 547.6540608823.

The spelling of 164255128 in words is "one hundred sixty-four million, two hundred fifty-five thousand, one hundred twenty-eight".