214230531 has 4 divisors (see below), whose sum is σ = 285640712. Its totient is φ = 142820352.

The previous prime is 214230517. The next prime is 214230581. The reversal of 214230531 is 135032412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 214230531 - 2⁷ = 214230403 is a prime.

It is a super-2 number, since 2×214230531² = 91789440825083922, 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 = 214230498 and 214230507.

It is not an unprimeable number, because it can be changed into a prime (214230581) 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, 35705086 + ... + 35705091.

It is an arithmetic number, because the mean of its divisors is an integer number (71410178).

Almost surely, 2^214230531 is an apocalyptic number.

214230531 is a deficient number, since it is larger than the sum of its proper divisors (71410181).

214230531 is an equidigital number, since it uses as much as digits as its factorization.

214230531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71410180.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 214230531 is about 14636.6161048242. The cubic root of 214230531 is about 598.3571083956.

Adding to 214230531 its reverse (135032412), we get a palindrome (349262943).

The spelling of 214230531 in words is "two hundred fourteen million, two hundred thirty thousand, five hundred thirty-one".