214004009 has 2 divisors, whose sum is σ = 214004010. Its totient is φ = 214004008.

The previous prime is 214003981. The next prime is 214004039. The reversal of 214004009 is 900400412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211062784 + 2941225 = 14528^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 214004009 - 2²⁰ = 212955433 is a prime.

It is not a weakly prime, because it can be changed into another prime (214004039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107002004 + 107002005.

It is an arithmetic number, because the mean of its divisors is an integer number (107002005).

Almost surely, 2^214004009 is an apocalyptic number.

It is an amenable number.

214004009 is a deficient number, since it is larger than the sum of its proper divisors (1).

214004009 is an equidigital number, since it uses as much as digits as its factorization.

214004009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 214004009 is about 14628.8758624851. The cubic root of 214004009 is about 598.1461380779.

The spelling of 214004009 in words is "two hundred fourteen million, four thousand, nine".