1406143423445 has 8 divisors (see below), whose sum is σ = 1687612756536. Its totient is φ = 1124754306496.

The previous prime is 1406143423429. The next prime is 1406143423471. The reversal of 1406143423445 is 5443243416041.

It can be written as a sum of positive squares in 4 ways, for example, as 630121615204 + 776021808241 = 793802^2 + 880921^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1406143423445 - 2⁴ = 1406143423429 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 20015462 + ... + 20085591.

It is an arithmetic number, because the mean of its divisors is an integer number (210951594567).

Almost surely, 2^{1406143423445} is an apocalyptic number.

It is an amenable number.

1406143423445 is a deficient number, since it is larger than the sum of its proper divisors (281469333091).

1406143423445 is an equidigital number, since it uses as much as digits as its factorization.

1406143423445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40108071.

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 1406143423445 its reverse (5443243416041), we get a palindrome (6849386839486).

The spelling of 1406143423445 in words is "one trillion, four hundred six billion, one hundred forty-three million, four hundred twenty-three thousand, four hundred forty-five".