1144430141 has 4 divisors (see below), whose sum is σ = 1145101500. Its totient is φ = 1143758784.

The previous prime is 1144430129. The next prime is 1144430167. The reversal of 1144430141 is 1410344411.

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 219662041 + 924768100 = 14821^2 + 30410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144430141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144430041) 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, 333116 + ... + 336533.

It is an arithmetic number, because the mean of its divisors is an integer number (286275375).

Almost surely, 2^1144430141 is an apocalyptic number.

It is an amenable number.

1144430141 is a deficient number, since it is larger than the sum of its proper divisors (671359).

1144430141 is an equidigital number, since it uses as much as digits as its factorization.

1144430141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671358.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1144430141 is about 33829.4271456080. The cubic root of 1144430141 is about 1045.9953706715.

Adding to 1144430141 its reverse (1410344411), we get a palindrome (2554774552).

The spelling of 1144430141 in words is "one billion, one hundred forty-four million, four hundred thirty thousand, one hundred forty-one".