1406143423405 has 16 divisors (see below), whose sum is σ = 1928628906624. Its totient is φ = 964110813120.

The previous prime is 1406143423397. The next prime is 1406143423423. The reversal of 1406143423405 is 5043243416041.

It is not a de Polignac number, because 1406143423405 - 2³ = 1406143423397 is a prime.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 1784322 + ... + 2448691.

It is an arithmetic number, because the mean of its divisors is an integer number (120539306664).

Almost surely, 2^{1406143423405} is an apocalyptic number.

It is an amenable number.

1406143423405 is a deficient number, since it is larger than the sum of its proper divisors (522485483219).

1406143423405 is an equidigital number, since it uses as much as digits as its factorization.

1406143423405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242516.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 1406143423405 its reverse (5043243416041), we get a palindrome (6449386839446).

The spelling of 1406143423405 in words is "one trillion, four hundred six billion, one hundred forty-three million, four hundred twenty-three thousand, four hundred five".