214638701 has 4 divisors (see below), whose sum is σ = 215163900. Its totient is φ = 214113504.

The previous prime is 214638689. The next prime is 214638709. The reversal of 214638701 is 107836412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107536900 + 107101801 = 10370^2 + 10349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214638701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214638709) 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 3 ways as a sum of consecutive naturals, for example, 261986 + ... + 262803.

It is an arithmetic number, because the mean of its divisors is an integer number (53790975).

Almost surely, 2^214638701 is an apocalyptic number.

It is an amenable number.

214638701 is a deficient number, since it is larger than the sum of its proper divisors (525199).

214638701 is an equidigital number, since it uses as much as digits as its factorization.

214638701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525198.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 214638701 is about 14650.5529247193. The cubic root of 214638701 is about 598.7368807117.

The spelling of 214638701 in words is "two hundred fourteen million, six hundred thirty-eight thousand, seven hundred one".