1445020143 has 72 divisors (see below), whose sum is σ = 2371808304. Its totient is φ = 779950080.

The previous prime is 1445020141. The next prime is 1445020151. The reversal of 1445020143 is 3410205441.

It is not a de Polignac number, because 1445020143 - 2¹ = 1445020141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445020141) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7487055 + ... + 7487247.

It is an arithmetic number, because the mean of its divisors is an integer number (32941782).

Almost surely, 2^1445020143 is an apocalyptic number.

1445020143 is a deficient number, since it is larger than the sum of its proper divisors (926788161).

1445020143 is a wasteful number, since it uses less digits than its factorization.

1445020143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1445020143 is about 38013.4205643218. The cubic root of 1445020143 is about 1130.5539725084.

Adding to 1445020143 its reverse (3410205441), we get a palindrome (4855225584).

The spelling of 1445020143 in words is "one billion, four hundred forty-five million, twenty thousand, one hundred forty-three".