213601369 has 2 divisors, whose sum is σ = 213601370. Its totient is φ = 213601368.

The previous prime is 213601357. The next prime is 213601397. The reversal of 213601369 is 963106312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192099600 + 21501769 = 13860^2 + 4637^2 .

It is a cyclic number.

It is not a de Polignac number, because 213601369 - 2⁵ = 213601337 is a prime.

It is a super-2 number, since 2×213601369² = 91251089677348322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213601369.

It is not a weakly prime, because it can be changed into another prime (213601309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106800684 + 106800685.

It is an arithmetic number, because the mean of its divisors is an integer number (106800685).

Almost surely, 2^213601369 is an apocalyptic number.

It is an amenable number.

213601369 is a deficient number, since it is larger than the sum of its proper divisors (1).

213601369 is an equidigital number, since it uses as much as digits as its factorization.

213601369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 213601369 is about 14615.1075603295. The cubic root of 213601369 is about 597.7707732077.

The spelling of 213601369 in words is "two hundred thirteen million, six hundred one thousand, three hundred sixty-nine".