214142689 has 4 divisors (see below), whose sum is σ = 214250260. Its totient is φ = 214035120.

The previous prime is 214142629. The next prime is 214142723. The reversal of 214142689 is 986241412.

214142689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 205779025 + 8363664 = 14345^2 + 2892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214142689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214142629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50742 + ... + 54799.

It is an arithmetic number, because the mean of its divisors is an integer number (53562565).

Almost surely, 2^214142689 is an apocalyptic number.

It is an amenable number.

214142689 is a deficient number, since it is larger than the sum of its proper divisors (107571).

214142689 is a wasteful number, since it uses less digits than its factorization.

214142689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107570.

The product of its digits is 27648, while the sum is 37.

The square root of 214142689 is about 14633.6150352536. The cubic root of 214142689 is about 598.2753147775.

The spelling of 214142689 in words is "two hundred fourteen million, one hundred forty-two thousand, six hundred eighty-nine".