214639213 has 4 divisors (see below), whose sum is σ = 216183520. Its totient is φ = 213094908.

The previous prime is 214639207. The next prime is 214639231. The reversal of 214639213 is 312936412.

214639213 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214639213 - 2²¹ = 212542061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214639283) 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, 771945 + ... + 772222.

It is an arithmetic number, because the mean of its divisors is an integer number (54045880).

Almost surely, 2^214639213 is an apocalyptic number.

It is an amenable number.

214639213 is a deficient number, since it is larger than the sum of its proper divisors (1544307).

214639213 is a wasteful number, since it uses less digits than its factorization.

214639213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544306.

The product of its digits is 7776, while the sum is 31.

The square root of 214639213 is about 14650.5703984521. The cubic root of 214639213 is about 598.7373567878.

The spelling of 214639213 in words is "two hundred fourteen million, six hundred thirty-nine thousand, two hundred thirteen".