143142223405 has 4 divisors (see below), whose sum is σ = 171770668092. Its totient is φ = 114513778720.

The previous prime is 143142223403. The next prime is 143142223429. The reversal of 143142223405 is 504322241341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15774606409 + 127367616996 = 125597^2 + 356886^2 .

It is not a de Polignac number, because 143142223405 - 2¹ = 143142223403 is a prime.

It is a super-2 number, since 2×143142223405² (a number of 23 digits) 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 (143142223403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14314222336 + ... + 14314222345.

It is an arithmetic number, because the mean of its divisors is an integer number (42942667023).

Almost surely, 2^143142223405 is an apocalyptic number.

It is an amenable number.

143142223405 is a deficient number, since it is larger than the sum of its proper divisors (28628444687).

143142223405 is an equidigital number, since it uses as much as digits as its factorization.

143142223405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28628444686.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 143142223405 its reverse (504322241341), we get a palindrome (647464464746).

The spelling of 143142223405 in words is "one hundred forty-three billion, one hundred forty-two million, two hundred twenty-three thousand, four hundred five".