214145143 has 4 divisors (see below), whose sum is σ = 225415960. Its totient is φ = 202874328.

The previous prime is 214145131. The next prime is 214145147. The reversal of 214145143 is 341541412.

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-214145143 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 (214145147) 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, 5635380 + ... + 5635417.

It is an arithmetic number, because the mean of its divisors is an integer number (56353990).

Almost surely, 2^214145143 is an apocalyptic number.

214145143 is a deficient number, since it is larger than the sum of its proper divisors (11270817).

214145143 is a wasteful number, since it uses less digits than its factorization.

214145143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270816.

The product of its digits is 1920, while the sum is 25.

The square root of 214145143 is about 14633.6988830576. The cubic root of 214145143 is about 598.2776001105.

Adding to 214145143 its reverse (341541412), we get a palindrome (555686555).

The spelling of 214145143 in words is "two hundred fourteen million, one hundred forty-five thousand, one hundred forty-three".