128982355 has 16 divisors (see below), whose sum is σ = 164616480. Its totient is φ = 96740352.

The previous prime is 128982331. The next prime is 128982361. The reversal of 128982355 is 553289821.

It is a cyclic number.

It is not a de Polignac number, because 128982355 - 2⁵ = 128982323 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2217 + ... + 16213.

It is an arithmetic number, because the mean of its divisors is an integer number (10288530).

Almost surely, 2^128982355 is an apocalyptic number.

128982355 is a deficient number, since it is larger than the sum of its proper divisors (35634125).

128982355 is a wasteful number, since it uses less digits than its factorization.

128982355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14118.

The product of its digits is 172800, while the sum is 43.

The square root of 128982355 is about 11357.0398872241. The cubic root of 128982355 is about 505.2543958917.

The spelling of 128982355 in words is "one hundred twenty-eight million, nine hundred eighty-two thousand, three hundred fifty-five".