214312431 has 8 divisors (see below), whose sum is σ = 290015104. Its totient is φ = 140742360.

The previous prime is 214312403. The next prime is 214312481. The reversal of 214312431 is 134213412.

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

It is not a de Polignac number, because 214312431 - 2⁹ = 214311919 is a prime.

It is a super-2 number, since 2×214312431² = 91859636162259522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214312398 and 214312407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214312481) 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, 532915 + ... + 533316.

It is an arithmetic number, because the mean of its divisors is an integer number (36251888).

Almost surely, 2^214312431 is an apocalyptic number.

214312431 is a deficient number, since it is larger than the sum of its proper divisors (75702673).

214312431 is a wasteful number, since it uses less digits than its factorization.

214312431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066301.

The product of its digits is 576, while the sum is 21.

The square root of 214312431 is about 14639.4136153058. The cubic root of 214312431 is about 598.4333490126.

Adding to 214312431 its reverse (134213412), we get a palindrome (348525843).

The spelling of 214312431 in words is "two hundred fourteen million, three hundred twelve thousand, four hundred thirty-one".