214005311 has 4 divisors (see below), whose sum is σ = 230467272. Its totient is φ = 197543352.

The previous prime is 214005293. The next prime is 214005343. The reversal of 214005311 is 113500412.

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

It is a cyclic number.

It is not a de Polignac number, because 214005311 - 2¹⁴ = 213988927 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 214005311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214005511) 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, 8230961 + ... + 8230986.

It is an arithmetic number, because the mean of its divisors is an integer number (57616818).

Almost surely, 2^214005311 is an apocalyptic number.

214005311 is a deficient number, since it is larger than the sum of its proper divisors (16461961).

214005311 is a wasteful number, since it uses less digits than its factorization.

214005311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16461960.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 214005311 is about 14628.9203634445. The cubic root of 214005311 is about 598.1473511154.

Adding to 214005311 its reverse (113500412), we get a palindrome (327505723).

The spelling of 214005311 in words is "two hundred fourteen million, five thousand, three hundred eleven".