213001361 has 4 divisors (see below), whose sum is σ = 213850224. Its totient is φ = 212152500.

The previous prime is 213001303. The next prime is 213001363. The reversal of 213001361 is 163100312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213001361 - 2²⁶ = 145892497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213001363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424055 + ... + 424556.

It is an arithmetic number, because the mean of its divisors is an integer number (53462556).

Almost surely, 2^213001361 is an apocalyptic number.

It is an amenable number.

213001361 is a deficient number, since it is larger than the sum of its proper divisors (848863).

213001361 is an equidigital number, since it uses as much as digits as its factorization.

213001361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848862.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 213001361 is about 14594.5661463436. The cubic root of 213001361 is about 597.2105339702.

Adding to 213001361 its reverse (163100312), we get a palindrome (376101673).

The spelling of 213001361 in words is "two hundred thirteen million, one thousand, three hundred sixty-one".