1143404001 has 12 divisors (see below), whose sum is σ = 1656967312. Its totient is φ = 759784536.

The previous prime is 1143403999. The next prime is 1143404027. The reversal of 1143404001 is 1004043411.

It is not a de Polignac number, because 1143404001 - 2¹ = 1143403999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143405001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204151 + ... + 209676.

Almost surely, 2^1143404001 is an apocalyptic number.

It is an amenable number.

1143404001 is a deficient number, since it is larger than the sum of its proper divisors (513563311).

1143404001 is a wasteful number, since it uses less digits than its factorization.

1143404001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414140 (or 414137 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1143404001 is about 33814.2573628344. The cubic root of 1143404001 is about 1045.6826506519.

Adding to 1143404001 its reverse (1004043411), we get a palindrome (2147447412).

It can be divided in two parts, 114340 and 4001, that added together give a triangular number (118341 = T₄₈₆).

The spelling of 1143404001 in words is "one billion, one hundred forty-three million, four hundred four thousand, one".