2158214 has 4 divisors (see below), whose sum is σ = 3237324. Its totient is φ = 1079106.

The previous prime is 2158183. The next prime is 2158223. The reversal of 2158214 is 4128512.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2158214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539552 + ... + 539555.

It is an arithmetic number, because the mean of its divisors is an integer number (809331).

2^2158214 is an apocalyptic number.

2158214 is a deficient number, since it is larger than the sum of its proper divisors (1079110).

2158214 is a wasteful number, since it uses less digits than its factorization.

2158214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079109.

The product of its digits is 640, while the sum is 23.

The square root of 2158214 is about 1469.0861104782. The cubic root of 2158214 is about 129.2304436115.

The spelling of 2158214 in words is "two million, one hundred fifty-eight thousand, two hundred fourteen".