214312131 has 24 divisors (see below), whose sum is σ = 343437120. Its totient is φ = 127681200.

The previous prime is 214312127. The next prime is 214312181. The reversal of 214312131 is 131213412.

214312131 is a `hidden beast` number, since 21 + 431 + 213 + 1 = 666.

It is not a de Polignac number, because 214312131 - 2² = 214312127 is a prime.

It is a super-2 number, since 2×214312131² = 91859378987522322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214312121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12505 + ... + 24186.

It is an arithmetic number, because the mean of its divisors is an integer number (14309880).

Almost surely, 2^214312131 is an apocalyptic number.

214312131 is a deficient number, since it is larger than the sum of its proper divisors (129124989).

214312131 is a wasteful number, since it uses less digits than its factorization.

214312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36767 (or 36764 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 214312131 is about 14639.4033689901. The cubic root of 214312131 is about 598.4330697784.

Adding to 214312131 its reverse (131213412), we get a palindrome (345525543).

The spelling of 214312131 in words is "two hundred fourteen million, three hundred twelve thousand, one hundred thirty-one".