1406143423226 has 4 divisors (see below), whose sum is σ = 2109215134842. Its totient is φ = 703071711612.

The previous prime is 1406143423219. The next prime is 1406143423261. The reversal of 1406143423226 is 6223243416041.

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

It can be written as a sum of positive squares in only one way, i.e., 1016061984001 + 390081439225 = 1007999^2 + 624565^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1406143423226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351535855805 + ... + 351535855808.

Almost surely, 2^{1406143423226} is an apocalyptic number.

1406143423226 is a deficient number, since it is larger than the sum of its proper divisors (703071711616).

1406143423226 is an equidigital number, since it uses as much as digits as its factorization.

1406143423226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703071711615.

The product of its (nonzero) digits is 165888, while the sum is 38.

Adding to 1406143423226 its reverse (6223243416041), we get a palindrome (7629386839267).

The spelling of 1406143423226 in words is "one trillion, four hundred six billion, one hundred forty-three million, four hundred twenty-three thousand, two hundred twenty-six".