214128885 has 16 divisors (see below), whose sum is σ = 343085184. Its totient is φ = 114042432.

The previous prime is 214128881. The next prime is 214128899. The reversal of 214128885 is 588821412.

It is not a de Polignac number, because 214128885 - 2² = 214128881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214128881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1539 + ... + 20751.

It is an arithmetic number, because the mean of its divisors is an integer number (21442824).

Almost surely, 2^214128885 is an apocalyptic number.

It is an amenable number.

214128885 is a deficient number, since it is larger than the sum of its proper divisors (128956299).

214128885 is a wasteful number, since it uses less digits than its factorization.

214128885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964.

The product of its digits is 40960, while the sum is 39.

The square root of 214128885 is about 14633.1433738620. The cubic root of 214128885 is about 598.2624592217.

The spelling of 214128885 in words is "two hundred fourteen million, one hundred twenty-eight thousand, eight hundred eighty-five".