214631 has 2 divisors, whose sum is σ = 214632. Its totient is φ = 214630.

The previous prime is 214607. The next prime is 214639. The reversal of 214631 is 136412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214631 is a prime.

It is a super-2 number, since 2×214631² = 92132932322, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107315 + 107316.

It is an arithmetic number, because the mean of its divisors is an integer number (107316).

2²¹⁴⁶³¹ is an apocalyptic number.

214631 is a deficient number, since it is larger than the sum of its proper divisors (1).

214631 is an equidigital number, since it uses as much as digits as its factorization.

214631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 214631 is about 463.2828509669. The cubic root of 214631 is about 59.8729719953.

The spelling of 214631 in words is "two hundred fourteen thousand, six hundred thirty-one".