1143232201 has 8 divisors (see below), whose sum is σ = 1210817160. Its totient is φ = 1075684608.

The previous prime is 1143232193. The next prime is 1143232243. The reversal of 1143232201 is 1022323411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 510760000 + 632472201 = 22600^2 + 25149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143232201 - 2³ = 1143232193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143230201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76015 + ... + 89803.

It is an arithmetic number, because the mean of its divisors is an integer number (151352145).

Almost surely, 2^1143232201 is an apocalyptic number.

It is an amenable number.

1143232201 is a deficient number, since it is larger than the sum of its proper divisors (67584959).

1143232201 is a wasteful number, since it uses less digits than its factorization.

1143232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18683.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143232201 is about 33811.7169188434. The cubic root of 1143232201 is about 1045.6302756741.

Adding to 1143232201 its reverse (1022323411), we get a palindrome (2165555612).

The spelling of 1143232201 in words is "one billion, one hundred forty-three million, two hundred thirty-two thousand, two hundred one".