1445640325142 has 16 divisors (see below), whose sum is σ = 2335359061392. Its totient is φ = 667191777120.

The previous prime is 1445640325141. The next prime is 1445640325159. The reversal of 1445640325142 is 2415230465441.

It is a self number, because there is not a number n which added to its sum of digits gives 1445640325142.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451709 + ... + 1759352.

It is an arithmetic number, because the mean of its divisors is an integer number (145959941337).

Almost surely, 2^{1445640325142} is an apocalyptic number.

1445640325142 is a deficient number, since it is larger than the sum of its proper divisors (889718736250).

1445640325142 is a wasteful number, since it uses less digits than its factorization.

1445640325142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236223.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 1445640325142 in words is "one trillion, four hundred forty-five billion, six hundred forty million, three hundred twenty-five thousand, one hundred forty-two".