1144401143 has 4 divisors (see below), whose sum is σ = 1172313408. Its totient is φ = 1116488880.

The previous prime is 1144401119. The next prime is 1144401151. The reversal of 1144401143 is 3411044411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1144401143 - 2¹² = 1144397047 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 (1144401743) 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, 13956071 + ... + 13956152.

It is an arithmetic number, because the mean of its divisors is an integer number (293078352).

Almost surely, 2^1144401143 is an apocalyptic number.

1144401143 is a deficient number, since it is larger than the sum of its proper divisors (27912265).

1144401143 is an equidigital number, since it uses as much as digits as its factorization.

1144401143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27912264.

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

The square root of 1144401143 is about 33828.9985515386. The cubic root of 1144401143 is about 1045.9865359892.

Adding to 1144401143 its reverse (3411044411), we get a palindrome (4555445554).

The spelling of 1144401143 in words is "one billion, one hundred forty-four million, four hundred one thousand, one hundred forty-three".