1420243143 has 16 divisors (see below), whose sum is σ = 2070144000. Its totient is φ = 858946880.

The previous prime is 1420243127. The next prime is 1420243147. The reversal of 1420243143 is 3413420241.

It is not a de Polignac number, because 1420243143 - 2⁴ = 1420243127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420243147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29118 + ... + 60731.

It is an arithmetic number, because the mean of its divisors is an integer number (129384000).

Almost surely, 2^1420243143 is an apocalyptic number.

1420243143 is a deficient number, since it is larger than the sum of its proper divisors (649900857).

1420243143 is a wasteful number, since it uses less digits than its factorization.

1420243143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90342.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1420243143 is about 37686.1133973776. The cubic root of 1420243143 is about 1124.0550136551.

Adding to 1420243143 its reverse (3413420241), we get a palindrome (4833663384).

The spelling of 1420243143 in words is "one billion, four hundred twenty million, two hundred forty-three thousand, one hundred forty-three".