213603361 has 8 divisors (see below), whose sum is σ = 221416448. Its totient is φ = 205848000.

The previous prime is 213603359. The next prime is 213603371. The reversal of 213603361 is 163306312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213603361 - 2¹ = 213603359 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (213603311) 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 7 ways as a sum of consecutive naturals, for example, 6825 + ... + 21766.

It is an arithmetic number, because the mean of its divisors is an integer number (27677056).

Almost surely, 2^213603361 is an apocalyptic number.

It is an amenable number.

213603361 is a deficient number, since it is larger than the sum of its proper divisors (7813087).

213603361 is a wasteful number, since it uses less digits than its factorization.

213603361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28863.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 213603361 is about 14615.1757088309. The cubic root of 213603361 is about 597.7726314287.

Adding to 213603361 its reverse (163306312), we get a palindrome (376909673).

The spelling of 213603361 in words is "two hundred thirteen million, six hundred three thousand, three hundred sixty-one".