201144413 has 4 divisors (see below), whose sum is σ = 201178908. Its totient is φ = 201109920.

The previous prime is 201144403. The next prime is 201144421. The reversal of 201144413 is 314441102.

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 17623204 + 183521209 = 4198^2 + 13547^2 .

It is a cyclic number.

It is not a de Polignac number, because 201144413 - 2¹⁰ = 201143389 is a prime.

It is a super-2 number, since 2×201144413² = 80918149762229138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201144403) 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, 6098 + ... + 20963.

It is an arithmetic number, because the mean of its divisors is an integer number (50294727).

Almost surely, 2^201144413 is an apocalyptic number.

It is an amenable number.

201144413 is a deficient number, since it is larger than the sum of its proper divisors (34495).

201144413 is an equidigital number, since it uses as much as digits as its factorization.

201144413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34494.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 201144413 is about 14182.5390181025. The cubic root of 201144413 is about 585.9168548336.

Adding to 201144413 its reverse (314441102), we get a palindrome (515585515).

The spelling of 201144413 in words is "two hundred one million, one hundred forty-four thousand, four hundred thirteen".