1144143531 has 6 divisors (see below), whose sum is σ = 1652651780. Its totient is φ = 762762348.

The previous prime is 1144143509. The next prime is 1144143541. The reversal of 1144143531 is 1353414411.

1144143531 is a `hidden beast` number, since 114 + 4 + 14 + 3 + 531 = 666.

It is not a de Polignac number, because 1144143531 - 2¹³ = 1144135339 is a prime.

It is a super-2 number, since 2×1144143531² = 2618128839058295922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144143495 and 1144143504.

It is not an unprimeable number, because it can be changed into a prime (1144143541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63563521 + ... + 63563538.

Almost surely, 2^1144143531 is an apocalyptic number.

1144143531 is a deficient number, since it is larger than the sum of its proper divisors (508508249).

1144143531 is a wasteful number, since it uses less digits than its factorization.

1144143531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127127065 (or 127127062 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1144143531 is about 33825.1907755152. The cubic root of 1144143531 is about 1045.9080440179.

Adding to 1144143531 its reverse (1353414411), we get a palindrome (2497557942).

The spelling of 1144143531 in words is "one billion, one hundred forty-four million, one hundred forty-three thousand, five hundred thirty-one".