214139 has 4 divisors (see below), whose sum is σ = 215424. Its totient is φ = 212856.

The previous prime is 214133. The next prime is 214141. The reversal of 214139 is 931412.

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-214139 is a prime.

It is a super-2 number, since 2×214139² = 91711022642, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 214139.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 214139.

It is not an unprimeable number, because it can be changed into a prime (214133) 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, 347 + ... + 740.

It is an arithmetic number, because the mean of its divisors is an integer number (53856).

2²¹⁴¹³⁹ is an apocalyptic number.

214139 is a deficient number, since it is larger than the sum of its proper divisors (1285).

214139 is a wasteful number, since it uses less digits than its factorization.

214139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284.

The product of its digits is 216, while the sum is 20.

The square root of 214139 is about 462.7515532119. The cubic root of 214139 is about 59.8271879295.

It can be divided in two parts, 214 and 139, that added together give a palindrome (353).

The spelling of 214139 in words is "two hundred fourteen thousand, one hundred thirty-nine".