201213413 has 4 divisors (see below), whose sum is σ = 201255180. Its totient is φ = 201171648.

The previous prime is 201213373. The next prime is 201213421. The reversal of 201213413 is 314312102.

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 119093569 + 82119844 = 10913^2 + 9062^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201213413 is a prime.

It is a super-2 number, since 2×201213413² = 80973675142217138, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201213391 and 201213400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201213433) 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, 12548 + ... + 23661.

It is an arithmetic number, because the mean of its divisors is an integer number (50313795).

Almost surely, 2^201213413 is an apocalyptic number.

It is an amenable number.

201213413 is a deficient number, since it is larger than the sum of its proper divisors (41767).

201213413 is an equidigital number, since it uses as much as digits as its factorization.

201213413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41766.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 201213413 is about 14184.9713781875. The cubic root of 201213413 is about 585.9838442509.

Adding to 201213413 its reverse (314312102), we get a palindrome (515525515).

The spelling of 201213413 in words is "two hundred one million, two hundred thirteen thousand, four hundred thirteen".