1422355143 has 32 divisors (see below), whose sum is σ = 2183823360. Its totient is φ = 814393440.

The previous prime is 1422355139. The next prime is 1422355189. The reversal of 1422355143 is 3415532241.

It is not a de Polignac number, because 1422355143 - 2² = 1422355139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1422355143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422351143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237180 + ... + 243102.

It is an arithmetic number, because the mean of its divisors is an integer number (68244480).

Almost surely, 2^1422355143 is an apocalyptic number.

1422355143 is a deficient number, since it is larger than the sum of its proper divisors (761468217).

1422355143 is a wasteful number, since it uses less digits than its factorization.

1422355143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6339.

The product of its digits is 14400, while the sum is 30.

The square root of 1422355143 is about 37714.1239192958. The cubic root of 1422355143 is about 1124.6119202670.

Adding to 1422355143 its reverse (3415532241), we get a palindrome (4837887384).

The spelling of 1422355143 in words is "one billion, four hundred twenty-two million, three hundred fifty-five thousand, one hundred forty-three".