214309903 has 2 divisors, whose sum is σ = 214309904. Its totient is φ = 214309902.

The previous prime is 214309877. The next prime is 214309919. The reversal of 214309903 is 309903412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214309903 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214309943) 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, 107154951 + 107154952.

It is an arithmetic number, because the mean of its divisors is an integer number (107154952).

Almost surely, 2^214309903 is an apocalyptic number.

214309903 is a deficient number, since it is larger than the sum of its proper divisors (1).

214309903 is an equidigital number, since it uses as much as digits as its factorization.

214309903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 214309903 is about 14639.3272727950. The cubic root of 214309903 is about 598.4309959908.

The spelling of 214309903 in words is "two hundred fourteen million, three hundred nine thousand, nine hundred three".