214545231 has 6 divisors (see below), whose sum is σ = 309898680. Its totient is φ = 143030148.

The previous prime is 214545229. The next prime is 214545239. The reversal of 214545231 is 132545412.

It is not a de Polignac number, because 214545231 - 2¹ = 214545229 is a prime.

It is a super-2 number, since 2×214545231² = 92059312289686722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214545195 and 214545204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214545239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11919171 + ... + 11919188.

It is an arithmetic number, because the mean of its divisors is an integer number (51649780).

Almost surely, 2^214545231 is an apocalyptic number.

214545231 is a deficient number, since it is larger than the sum of its proper divisors (95353449).

214545231 is a wasteful number, since it uses less digits than its factorization.

214545231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23838365 (or 23838362 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 214545231 is about 14647.3625953617. The cubic root of 214545231 is about 598.6499562481.

The spelling of 214545231 in words is "two hundred fourteen million, five hundred forty-five thousand, two hundred thirty-one".