214244657 has 6 divisors (see below), whose sum is σ = 235492194. Its totient is φ = 194767760.

The previous prime is 214244647. The next prime is 214244671. The reversal of 214244657 is 756442412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 161696656 + 52548001 = 12716^2 + 7249^2 .

It is not a de Polignac number, because 214244657 - 2⁶ = 214244593 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (214244617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 885188 + ... + 885429.

It is an arithmetic number, because the mean of its divisors is an integer number (39248699).

Almost surely, 2^214244657 is an apocalyptic number.

It is an amenable number.

214244657 is a deficient number, since it is larger than the sum of its proper divisors (21247537).

214244657 is a wasteful number, since it uses less digits than its factorization.

214244657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770639 (or 1770628 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 214244657 is about 14637.0986537633. The cubic root of 214244657 is about 598.3702596595.

The spelling of 214244657 in words is "two hundred fourteen million, two hundred forty-four thousand, six hundred fifty-seven".