214131431 has 4 divisors (see below), whose sum is σ = 214224864. Its totient is φ = 214038000.

The previous prime is 214131361. The next prime is 214131433. The reversal of 214131431 is 134131412.

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 214131431 - 2¹⁰ = 214130407 is a prime.

It is a super-2 number, since 2×214131431² = 91704539484215522, 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 (214131433) 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, 43190 + ... + 47891.

It is an arithmetic number, because the mean of its divisors is an integer number (53556216).

Almost surely, 2^214131431 is an apocalyptic number.

214131431 is a deficient number, since it is larger than the sum of its proper divisors (93433).

214131431 is an equidigital number, since it uses as much as digits as its factorization.

214131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93432.

The product of its digits is 288, while the sum is 20.

The square root of 214131431 is about 14633.2303678989. The cubic root of 214131431 is about 598.2648303329.

Adding to 214131431 its reverse (134131412), we get a palindrome (348262843).

The spelling of 214131431 in words is "two hundred fourteen million, one hundred thirty-one thousand, four hundred thirty-one".