1431442143 has 72 divisors (see below), whose sum is σ = 2327934336. Its totient is φ = 846028800.

The previous prime is 1431442141. The next prime is 1431442151. The reversal of 1431442143 is 3412441341.

It is not a de Polignac number, because 1431442143 - 2¹ = 1431442141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431442141) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3305655 + ... + 3306087.

Almost surely, 2^1431442143 is an apocalyptic number.

1431442143 is a deficient number, since it is larger than the sum of its proper divisors (896492193).

1431442143 is a wasteful number, since it uses less digits than its factorization.

1431442143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 525 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1431442143 is about 37834.4042241978. The cubic root of 1431442143 is about 1127.0017740952.

Adding to 1431442143 its reverse (3412441341), we get a palindrome (4843883484).

The spelling of 1431442143 in words is "one billion, four hundred thirty-one million, four hundred forty-two thousand, one hundred forty-three".