201440213 has 4 divisors (see below), whose sum is σ = 216935628. Its totient is φ = 185944800.

The previous prime is 201440209. The next prime is 201440221. The reversal of 201440213 is 312044102.

201440213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 20994724 + 180445489 = 4582^2 + 13433^2 .

It is a cyclic number.

It is not a de Polignac number, because 201440213 - 2² = 201440209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201440191 and 201440200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201440273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7747688 + ... + 7747713.

It is an arithmetic number, because the mean of its divisors is an integer number (54233907).

Almost surely, 2^201440213 is an apocalyptic number.

It is an amenable number.

201440213 is a deficient number, since it is larger than the sum of its proper divisors (15495415).

201440213 is a wasteful number, since it uses less digits than its factorization.

201440213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15495414.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 201440213 is about 14192.9635030884. The cubic root of 201440213 is about 586.2039277126.

Adding to 201440213 its reverse (312044102), we get a palindrome (513484315).

The spelling of 201440213 in words is "two hundred one million, four hundred forty thousand, two hundred thirteen".