214305407 has 2 divisors, whose sum is σ = 214305408. Its totient is φ = 214305406.

The previous prime is 214305397. The next prime is 214305457. The reversal of 214305407 is 704503412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214305407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214305457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107152703 + 107152704.

It is an arithmetic number, because the mean of its divisors is an integer number (107152704).

Almost surely, 2^214305407 is an apocalyptic number.

214305407 is a deficient number, since it is larger than the sum of its proper divisors (1).

214305407 is an equidigital number, since it uses as much as digits as its factorization.

214305407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 214305407 is about 14639.1737130208. The cubic root of 214305407 is about 598.4268111405.

Adding to 214305407 its reverse (704503412), we get a palindrome (918808819).

The spelling of 214305407 in words is "two hundred fourteen million, three hundred five thousand, four hundred seven".