128252205 has 24 divisors (see below), whose sum is σ = 222638208. Its totient is φ = 68298336.

The previous prime is 128252203. The next prime is 128252207. The reversal of 128252205 is 502252821.

It is an interprime number because it is at equal distance from previous prime (128252203) and next prime (128252207).

It is not a de Polignac number, because 128252205 - 2¹ = 128252203 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128252203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35304 + ... + 38766.

It is an arithmetic number, because the mean of its divisors is an integer number (9276592).

Almost surely, 2^128252205 is an apocalyptic number.

128252205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128252205 is a deficient number, since it is larger than the sum of its proper divisors (94386003).

128252205 is a wasteful number, since it uses less digits than its factorization.

128252205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4297 (or 4294 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 128252205 is about 11324.8490056159. The cubic root of 128252205 is about 504.2992011225.

The spelling of 128252205 in words is "one hundred twenty-eight million, two hundred fifty-two thousand, two hundred five".