1409145081845 has 16 divisors (see below), whose sum is σ = 1708518681408. Its totient is φ = 1115621199360.

The previous prime is 1409145081811. The next prime is 1409145081863. The reversal of 1409145081845 is 5481805419041.

It is a happy number.

It is not a de Polignac number, because 1409145081845 - 2⁶ = 1409145081781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1409145081793 and 1409145081802.

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, 8035550 + ... + 8209040.

It is an arithmetic number, because the mean of its divisors is an integer number (106782417588).

Almost surely, 2^{1409145081845} is an apocalyptic number.

It is an amenable number.

1409145081845 is a deficient number, since it is larger than the sum of its proper divisors (299373599563).

1409145081845 is a wasteful number, since it uses less digits than its factorization.

1409145081845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190340.

The product of its (nonzero) digits is 921600, while the sum is 50.

The spelling of 1409145081845 in words is "one trillion, four hundred nine billion, one hundred forty-five million, eighty-one thousand, eight hundred forty-five".