1445202144 has 72 divisors (see below), whose sum is σ = 4242393792. Its totient is φ = 466191360.

The previous prime is 1445202133. The next prime is 1445202229. The reversal of 1445202144 is 4412025441.

1445202144 is a `hidden beast` number, since 1 + 445 + 2 + 0 + 214 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72009 + ... + 89864.

It is an arithmetic number, because the mean of its divisors is an integer number (58922136).

Almost surely, 2^1445202144 is an apocalyptic number.

It is an amenable number.

1445202144 is an abundant number, since it is smaller than the sum of its proper divisors (2797191648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445202144 is a wasteful number, since it uses less digits than its factorization.

1445202144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161920 (or 161909 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 1445202144 is about 38015.8143934863. The cubic root of 1445202144 is about 1130.6014351261.

Adding to 1445202144 its reverse (4412025441), we get a palindrome (5857227585).

The spelling of 1445202144 in words is "one billion, four hundred forty-five million, two hundred two thousand, one hundred forty-four".