214212531 has 16 divisors (see below), whose sum is σ = 318195360. Its totient is φ = 127276800.

The previous prime is 214212521. The next prime is 214212533. The reversal of 214212531 is 135212412.

It is not a de Polignac number, because 214212531 - 2¹⁰ = 214211507 is a prime.

It is a super-2 number, since 2×214212531² = 91774016874851922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214212498 and 214212507.

It is not an unprimeable number, because it can be changed into a prime (214212533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93570 + ... + 95831.

It is an arithmetic number, because the mean of its divisors is an integer number (19887210).

Almost surely, 2^214212531 is an apocalyptic number.

214212531 is a deficient number, since it is larger than the sum of its proper divisors (103982829).

214212531 is a wasteful number, since it uses less digits than its factorization.

214212531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189446.

The product of its digits is 480, while the sum is 21.

The square root of 214212531 is about 14636.0011956818. The cubic root of 214212531 is about 598.3403496115.

Adding to 214212531 its reverse (135212412), we get a palindrome (349424943).

The spelling of 214212531 in words is "two hundred fourteen million, two hundred twelve thousand, five hundred thirty-one".