1420322143 has 8 divisors (see below), whose sum is σ = 1523286000. Its totient is φ = 1320179328.

The previous prime is 1420322107. The next prime is 1420322177. The reversal of 1420322143 is 3412230241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420322143 is a prime.

It is a super-2 number, since 2×1420322143² = 4034629979792224898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420322843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704218 + ... + 706231.

It is an arithmetic number, because the mean of its divisors is an integer number (190410750).

Almost surely, 2^1420322143 is an apocalyptic number.

1420322143 is a deficient number, since it is larger than the sum of its proper divisors (102963857).

1420322143 is a wasteful number, since it uses less digits than its factorization.

1420322143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410521.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1420322143 is about 37687.1615142345. The cubic root of 1420322143 is about 1124.0758548517.

Adding to 1420322143 its reverse (3412230241), we get a palindrome (4832552384).

The spelling of 1420322143 in words is "one billion, four hundred twenty million, three hundred twenty-two thousand, one hundred forty-three".