214952609 has 2 divisors, whose sum is σ = 214952610. Its totient is φ = 214952608.

The previous prime is 214952587. The next prime is 214952671. The reversal of 214952609 is 906259412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149989009 + 64963600 = 12247^2 + 8060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214952609 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (214952209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107476304 + 107476305.

It is an arithmetic number, because the mean of its divisors is an integer number (107476305).

Almost surely, 2^214952609 is an apocalyptic number.

It is an amenable number.

214952609 is a deficient number, since it is larger than the sum of its proper divisors (1).

214952609 is an equidigital number, since it uses as much as digits as its factorization.

214952609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 214952609 is about 14661.2621898662. The cubic root of 214952609 is about 599.0286217410.

The spelling of 214952609 in words is "two hundred fourteen million, nine hundred fifty-two thousand, six hundred nine".