214245631 has 2 divisors, whose sum is σ = 214245632. Its totient is φ = 214245630.

The previous prime is 214245613. The next prime is 214245643. The reversal of 214245631 is 136542412.

Together with previous prime (214245613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214245631 - 2²¹ = 212148479 is a prime.

It is a super-2 number, since 2×214245631² = 91802380805176322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 214245631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214245331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107122815 + 107122816.

It is an arithmetic number, because the mean of its divisors is an integer number (107122816).

Almost surely, 2^214245631 is an apocalyptic number.

214245631 is a deficient number, since it is larger than the sum of its proper divisors (1).

214245631 is an equidigital number, since it uses as much as digits as its factorization.

214245631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 214245631 is about 14637.1319253466. The cubic root of 214245631 is about 598.3711664293.

The spelling of 214245631 in words is "two hundred fourteen million, two hundred forty-five thousand, six hundred thirty-one".