213289597 has 2 divisors, whose sum is σ = 213289598. Its totient is φ = 213289596.

The previous prime is 213289591. The next prime is 213289613. The reversal of 213289597 is 795982312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197655481 + 15634116 = 14059^2 + 3954^2 .

It is a cyclic number.

It is not a de Polignac number, because 213289597 - 2¹¹ = 213287549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213289591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106644798 + 106644799.

It is an arithmetic number, because the mean of its divisors is an integer number (106644799).

Almost surely, 2^213289597 is an apocalyptic number.

It is an amenable number.

213289597 is a deficient number, since it is larger than the sum of its proper divisors (1).

213289597 is an equidigital number, since it uses as much as digits as its factorization.

213289597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 213289597 is about 14604.4375790374. The cubic root of 213289597 is about 597.4797967060.

The spelling of 213289597 in words is "two hundred thirteen million, two hundred eighty-nine thousand, five hundred ninety-seven".