214965869 has 2 divisors, whose sum is σ = 214965870. Its totient is φ = 214965868.

The previous prime is 214965853. The next prime is 214965887. The reversal of 214965869 is 968569412.

214965869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195720100 + 19245769 = 13990^2 + 4387^2 .

It is a cyclic number.

It is not a de Polignac number, because 214965869 - 2⁴ = 214965853 is a prime.

It is a super-2 number, since 2×214965869² = 92420649669850322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214965469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107482934 + 107482935.

It is an arithmetic number, because the mean of its divisors is an integer number (107482935).

Almost surely, 2^214965869 is an apocalyptic number.

It is an amenable number.

214965869 is a deficient number, since it is larger than the sum of its proper divisors (1).

214965869 is an equidigital number, since it uses as much as digits as its factorization.

214965869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 50.

The square root of 214965869 is about 14661.7143949812. The cubic root of 214965869 is about 599.0409391168.

The spelling of 214965869 in words is "two hundred fourteen million, nine hundred sixty-five thousand, eight hundred sixty-nine".