1445640325143 has 32 divisors (see below), whose sum is σ = 2272563449856. Its totient is φ = 800149321728.

The previous prime is 1445640325141. The next prime is 1445640325159. The reversal of 1445640325143 is 3415230465441.

It is not a de Polignac number, because 1445640325143 - 2¹ = 1445640325141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1445640325095 and 1445640325104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445640325141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3998346 + ... + 4344887.

It is an arithmetic number, because the mean of its divisors is an integer number (71017607808).

Almost surely, 2^{1445640325143} is an apocalyptic number.

1445640325143 is a deficient number, since it is larger than the sum of its proper divisors (826923124713).

1445640325143 is a wasteful number, since it uses less digits than its factorization.

1445640325143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343503.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 1445640325143 in words is "one trillion, four hundred forty-five billion, six hundred forty million, three hundred twenty-five thousand, one hundred forty-three".