1431404143 has 6 divisors (see below), whose sum is σ = 1549982184. Its totient is φ = 1321295976.

The previous prime is 1431404123. The next prime is 1431404171. The reversal of 1431404143 is 3414041341.

It is not a de Polignac number, because 1431404143 - 2¹⁷ = 1431273071 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 (1431404123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4234755 + ... + 4235092.

It is an arithmetic number, because the mean of its divisors is an integer number (258330364).

Almost surely, 2^1431404143 is an apocalyptic number.

1431404143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1431404143 is a deficient number, since it is larger than the sum of its proper divisors (118578041).

1431404143 is an equidigital number, since it uses as much as digits as its factorization.

1431404143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8469873 (or 8469860 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1431404143 is about 37833.9020324365. The cubic root of 1431404143 is about 1126.9918012981.

Adding to 1431404143 its reverse (3414041341), we get a palindrome (4845445484).

The spelling of 1431404143 in words is "one billion, four hundred thirty-one million, four hundred four thousand, one hundred forty-three".