2201143531 has 4 divisors (see below), whose sum is σ = 2208977064. Its totient is φ = 2193310000.

The previous prime is 2201143487. The next prime is 2201143547. The reversal of 2201143531 is 1353411022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1353411022 = 2 ⋅676705511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201143531 is a prime.

It is a super-2 number, since 2×2201143531² = 9690065688126295922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201143591) 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, 3916345 + ... + 3916906.

It is an arithmetic number, because the mean of its divisors is an integer number (552244266).

Almost surely, 2^2201143531 is an apocalyptic number.

2201143531 is a deficient number, since it is larger than the sum of its proper divisors (7833533).

2201143531 is an equidigital number, since it uses as much as digits as its factorization.

2201143531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833532.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2201143531 is about 46916.3460960037. The cubic root of 2201143531 is about 1300.8167512491.

Adding to 2201143531 its reverse (1353411022), we get a palindrome (3554554553).

The spelling of 2201143531 in words is "two billion, two hundred one million, one hundred forty-three thousand, five hundred thirty-one".