1445202141 has 4 divisors (see below), whose sum is σ = 1926936192. Its totient is φ = 963468092.

The previous prime is 1445202133. The next prime is 1445202229. The reversal of 1445202141 is 1412025441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1445202141 - 2³ = 1445202133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445202131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240867021 + ... + 240867026.

It is an arithmetic number, because the mean of its divisors is an integer number (481734048).

Almost surely, 2^1445202141 is an apocalyptic number.

It is an amenable number.

1445202141 is a deficient number, since it is larger than the sum of its proper divisors (481734051).

1445202141 is an equidigital number, since it uses as much as digits as its factorization.

1445202141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481734050.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1445202141 is about 38015.8143540290. The cubic root of 1445202141 is about 1130.6014343437.

Adding to 1445202141 its reverse (1412025441), we get a palindrome (2857227582).

The spelling of 1445202141 in words is "one billion, four hundred forty-five million, two hundred two thousand, one hundred forty-one".