214641257 has 2 divisors, whose sum is σ = 214641258. Its totient is φ = 214641256.

The previous prime is 214641239. The next prime is 214641277. The reversal of 214641257 is 752146412.

214641257 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., 214007641 + 633616 = 14629^2 + 796^2 .

It is a cyclic number.

It is not a de Polignac number, because 214641257 - 2⁸ = 214641001 is a prime.

It is not a weakly prime, because it can be changed into another prime (214641277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107320628 + 107320629.

It is an arithmetic number, because the mean of its divisors is an integer number (107320629).

Almost surely, 2^214641257 is an apocalyptic number.

It is an amenable number.

214641257 is a deficient number, since it is larger than the sum of its proper divisors (1).

214641257 is an equidigital number, since it uses as much as digits as its factorization.

214641257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 214641257 is about 14650.6401566621. The cubic root of 214641257 is about 598.7392573651.

Adding to 214641257 its reverse (752146412), we get a palindrome (966787669).

The spelling of 214641257 in words is "two hundred fourteen million, six hundred forty-one thousand, two hundred fifty-seven".