213394201 has 2 divisors, whose sum is σ = 213394202. Its totient is φ = 213394200.

The previous prime is 213394199. The next prime is 213394211. The reversal of 213394201 is 102493312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132825625 + 80568576 = 11525^2 + 8976^2 .

It is a cyclic number.

It is not a de Polignac number, because 213394201 - 2¹ = 213394199 is a prime.

Together with 213394199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213394211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106697100 + 106697101.

It is an arithmetic number, because the mean of its divisors is an integer number (106697101).

Almost surely, 2^213394201 is an apocalyptic number.

It is an amenable number.

213394201 is a deficient number, since it is larger than the sum of its proper divisors (1).

213394201 is an equidigital number, since it uses as much as digits as its factorization.

213394201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 213394201 is about 14608.0183803280. The cubic root of 213394201 is about 597.5774551060.

The spelling of 213394201 in words is "two hundred thirteen million, three hundred ninety-four thousand, two hundred one".