128863214 has 4 divisors (see below), whose sum is σ = 193294824. Its totient is φ = 64431606.

The previous prime is 128863199. The next prime is 128863219. The reversal of 128863214 is 412368821.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128863219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32215802 + ... + 32215805.

It is an arithmetic number, because the mean of its divisors is an integer number (48323706).

Almost surely, 2^128863214 is an apocalyptic number.

128863214 is a deficient number, since it is larger than the sum of its proper divisors (64431610).

128863214 is an equidigital number, since it uses as much as digits as its factorization.

128863214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64431609.

The product of its digits is 18432, while the sum is 35.

The square root of 128863214 is about 11351.7934265912. The cubic root of 128863214 is about 505.0987801410.

The spelling of 128863214 in words is "one hundred twenty-eight million, eight hundred sixty-three thousand, two hundred fourteen".