128145366 has 24 divisors (see below), whose sum is σ = 280401264. Its totient is φ = 42291600.

The previous prime is 128145349. The next prime is 128145421. The reversal of 128145366 is 663541821.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 128145366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33426 + ... + 37061.

It is an arithmetic number, because the mean of its divisors is an integer number (11683386).

Almost surely, 2^128145366 is an apocalyptic number.

128145366 is an abundant number, since it is smaller than the sum of its proper divisors (152255898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128145366 is a wasteful number, since it uses less digits than its factorization.

128145366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70596 (or 70593 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 128145366 is about 11320.1310063091. The cubic root of 128145366 is about 504.1591287021.

The spelling of 128145366 in words is "one hundred twenty-eight million, one hundred forty-five thousand, three hundred sixty-six".