128264 has 8 divisors (see below), whose sum is σ = 240510. Its totient is φ = 64128.

The previous prime is 128257. The next prime is 128273. The reversal of 128264 is 462821.

It can be written as a sum of positive squares in only one way, i.e., 128164 + 100 = 358^2 + 10^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

128264 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8009 + ... + 8024.

2¹²⁸²⁶⁴ is an apocalyptic number.

It is an amenable number.

128264 is a deficient number, since it is larger than the sum of its proper divisors (112246).

128264 is a wasteful number, since it uses less digits than its factorization.

128264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16039 (or 16035 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 128264 is about 358.1396375717. The cubic root of 128264 is about 50.4314660315.

The spelling of 128264 in words is "one hundred twenty-eight thousand, two hundred sixty-four".