1144265201 has 4 divisors (see below), whose sum is σ = 1144446372. Its totient is φ = 1144084032.

The previous prime is 1144265183. The next prime is 1144265207. The reversal of 1144265201 is 1025624411.

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 431642176 + 712623025 = 20776^2 + 26695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144265201 - 2⁶ = 1144265137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1144265207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80756 + ... + 93861.

It is an arithmetic number, because the mean of its divisors is an integer number (286111593).

Almost surely, 2^1144265201 is an apocalyptic number.

It is an amenable number.

1144265201 is a deficient number, since it is larger than the sum of its proper divisors (181171).

1144265201 is an equidigital number, since it uses as much as digits as its factorization.

1144265201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181170.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1144265201 is about 33826.9892393633. The cubic root of 1144265201 is about 1045.9451171991.

Adding to 1144265201 its reverse (1025624411), we get a palindrome (2169889612).

The spelling of 1144265201 in words is "one billion, one hundred forty-four million, two hundred sixty-five thousand, two hundred one".