214611971 has 8 divisors (see below), whose sum is σ = 247700064. Its totient is φ = 182131200.

The previous prime is 214611959. The next prime is 214611979. The reversal of 214611971 is 179116412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214611971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214611979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151070 + ... + 152483.

It is an arithmetic number, because the mean of its divisors is an integer number (30962508).

Almost surely, 2^214611971 is an apocalyptic number.

214611971 is a deficient number, since it is larger than the sum of its proper divisors (33088093).

214611971 is a wasteful number, since it uses less digits than its factorization.

214611971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303661.

The product of its digits is 3024, while the sum is 32.

The square root of 214611971 is about 14649.6406440568. The cubic root of 214611971 is about 598.7120251426.

It can be divided in two parts, 21461 and 1971, that added together give a palindrome (23432).

The spelling of 214611971 in words is "two hundred fourteen million, six hundred eleven thousand, nine hundred seventy-one".