214510631 has 2 divisors, whose sum is σ = 214510632. Its totient is φ = 214510630.

The previous prime is 214510609. The next prime is 214510649. The reversal of 214510631 is 136015412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214510631 is a prime.

It is a super-2 number, since 2×214510631² = 92029621624036322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 214510597 and 214510606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214510661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107255315 + 107255316.

It is an arithmetic number, because the mean of its divisors is an integer number (107255316).

Almost surely, 2^214510631 is an apocalyptic number.

214510631 is a deficient number, since it is larger than the sum of its proper divisors (1).

214510631 is an equidigital number, since it uses as much as digits as its factorization.

214510631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 214510631 is about 14646.1814477358. The cubic root of 214510631 is about 598.6177728215.

The spelling of 214510631 in words is "two hundred fourteen million, five hundred ten thousand, six hundred thirty-one".