214012243 has 4 divisors (see below), whose sum is σ = 214061688. Its totient is φ = 213962800.

The previous prime is 214012237. The next prime is 214012259. The reversal of 214012243 is 342210412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214012243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214012243.

It is not an unprimeable number, because it can be changed into a prime (214012273) 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, 17533 + ... + 27118.

It is an arithmetic number, because the mean of its divisors is an integer number (53515422).

Almost surely, 2^214012243 is an apocalyptic number.

214012243 is a deficient number, since it is larger than the sum of its proper divisors (49445).

214012243 is an equidigital number, since it uses as much as digits as its factorization.

214012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49444.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 214012243 is about 14629.1572894682. The cubic root of 214012243 is about 598.1538093861.

Adding to 214012243 its reverse (342210412), we get a palindrome (556222655).

The spelling of 214012243 in words is "two hundred fourteen million, twelve thousand, two hundred forty-three".