214137128 has 8 divisors (see below), whose sum is σ = 401507130. Its totient is φ = 107068560.

The previous prime is 214137101. The next prime is 214137169. The reversal of 214137128 is 821731412.

It can be written as a sum of positive squares in only one way, i.e., 134606404 + 79530724 = 11602^2 + 8918^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 214137128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13383563 + ... + 13383578.

Almost surely, 2^214137128 is an apocalyptic number.

It is an amenable number.

214137128 is a deficient number, since it is larger than the sum of its proper divisors (187370002).

214137128 is a wasteful number, since it uses less digits than its factorization.

214137128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26767147 (or 26767143 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 214137128 is about 14633.4250262883. The cubic root of 214137128 is about 598.2701359287.

The spelling of 214137128 in words is "two hundred fourteen million, one hundred thirty-seven thousand, one hundred twenty-eight".