128372 has 12 divisors (see below), whose sum is σ = 228480. Its totient is φ = 63096.

The previous prime is 128351. The next prime is 128377. The reversal of 128372 is 273821.

128372 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29 + ... + 507.

It is an arithmetic number, because the mean of its divisors is an integer number (19040).

2¹²⁸³⁷² is an apocalyptic number.

It is an amenable number.

128372 is a deficient number, since it is larger than the sum of its proper divisors (100108).

128372 is a wasteful number, since it uses less digits than its factorization.

128372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 548 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 128372 is about 358.2903850231. The cubic root of 128372 is about 50.4456167164.

The spelling of 128372 in words is "one hundred twenty-eight thousand, three hundred seventy-two".