214513231 has 4 divisors (see below), whose sum is σ = 215450200. Its totient is φ = 213576264.

The previous prime is 214513177. The next prime is 214513241. The reversal of 214513231 is 132315412.

It is a happy number.

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 214513231 - 2¹¹ = 214511183 is a prime.

It is a super-2 number, since 2×214513231² = 92031852548118722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214513241) 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, 468141 + ... + 468598.

It is an arithmetic number, because the mean of its divisors is an integer number (53862550).

Almost surely, 2^214513231 is an apocalyptic number.

214513231 is a deficient number, since it is larger than the sum of its proper divisors (936969).

214513231 is an equidigital number, since it uses as much as digits as its factorization.

214513231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936968.

The product of its digits is 720, while the sum is 22.

The square root of 214513231 is about 14646.2702078038. The cubic root of 214513231 is about 598.6201913496.

Adding to 214513231 its reverse (132315412), we get a palindrome (346828643).

It can be divided in two parts, 2145 and 13231, that added together give a square (15376 = 124²).

The spelling of 214513231 in words is "two hundred fourteen million, five hundred thirteen thousand, two hundred thirty-one".