213934601 has 2 divisors, whose sum is σ = 213934602. Its totient is φ = 213934600.

The previous prime is 213934577. The next prime is 213934639. The reversal of 213934601 is 106439312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194574601 + 19360000 = 13949^2 + 4400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213934601 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (213934901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106967300 + 106967301.

It is an arithmetic number, because the mean of its divisors is an integer number (106967301).

Almost surely, 2^213934601 is an apocalyptic number.

It is an amenable number.

213934601 is a deficient number, since it is larger than the sum of its proper divisors (1).

213934601 is an equidigital number, since it uses as much as digits as its factorization.

213934601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 213934601 is about 14626.5033757218. The cubic root of 213934601 is about 598.0814654323.

The spelling of 213934601 in words is "two hundred thirteen million, nine hundred thirty-four thousand, six hundred one".