213013201 has 4 divisors (see below), whose sum is σ = 217032372. Its totient is φ = 208994032.

The previous prime is 213013153. The next prime is 213013211. The reversal of 213013201 is 102310312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104019601 + 108993600 = 10199^2 + 10440^2 .

It is a cyclic number.

It is not a de Polignac number, because 213013201 - 2¹⁵ = 212980433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213013211) 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 3 ways as a sum of consecutive naturals, for example, 2009506 + ... + 2009611.

It is an arithmetic number, because the mean of its divisors is an integer number (54258093).

Almost surely, 2^213013201 is an apocalyptic number.

It is an amenable number.

213013201 is a deficient number, since it is larger than the sum of its proper divisors (4019171).

213013201 is an equidigital number, since it uses as much as digits as its factorization.

213013201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019170.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213013201 is about 14594.9717711272. The cubic root of 213013201 is about 597.2215993795.

Adding to 213013201 its reverse (102310312), we get a palindrome (315323513).

The spelling of 213013201 in words is "two hundred thirteen million, thirteen thousand, two hundred one".