1144331001 has 36 divisors (see below), whose sum is σ = 1829143680. Its totient is φ = 688842000.

The previous prime is 1144330987. The next prime is 1144331011. The reversal of 1144331001 is 1001334411.

It is not a de Polignac number, because 1144331001 - 2²⁶ = 1077222137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144331011) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 160960 + ... + 167918.

Almost surely, 2^1144331001 is an apocalyptic number.

1144331001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1144331001 is a deficient number, since it is larger than the sum of its proper divisors (684812679).

1144331001 is a wasteful number, since it uses less digits than its factorization.

1144331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138 (or 7124 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1144331001 is about 33827.9618215464. The cubic root of 1144331001 is about 1045.9651655438.

Adding to 1144331001 its reverse (1001334411), we get a palindrome (2145665412).

The spelling of 1144331001 in words is "one billion, one hundred forty-four million, three hundred thirty-one thousand, one".