214241857 has 2 divisors, whose sum is σ = 214241858. Its totient is φ = 214241856.

The previous prime is 214241843. The next prime is 214241873. The reversal of 214241857 is 758142412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115756081 + 98485776 = 10759^2 + 9924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214241857 is a prime.

It is not a weakly prime, because it can be changed into another prime (214241887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107120928 + 107120929.

It is an arithmetic number, because the mean of its divisors is an integer number (107120929).

Almost surely, 2^214241857 is an apocalyptic number.

It is an amenable number.

214241857 is a deficient number, since it is larger than the sum of its proper divisors (1).

214241857 is an equidigital number, since it uses as much as digits as its factorization.

214241857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 34.

The square root of 214241857 is about 14637.0030060802. The cubic root of 214241857 is about 598.3676529138.

The spelling of 214241857 in words is "two hundred fourteen million, two hundred forty-one thousand, eight hundred fifty-seven".