1447172900189 has 4 divisors (see below), whose sum is σ = 1447275238656. Its totient is φ = 1447070561724.

The previous prime is 1447172900183. The next prime is 1447172900191. The reversal of 1447172900189 is 9810092717441.

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 1447172900189 - 2¹² = 1447172896093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1447172900189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447172900183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51148019 + ... + 51176304.

It is an arithmetic number, because the mean of its divisors is an integer number (361818809664).

Almost surely, 2^{1447172900189} is an apocalyptic number.

It is an amenable number.

1447172900189 is a deficient number, since it is larger than the sum of its proper divisors (102338467).

1447172900189 is a wasteful number, since it uses less digits than its factorization.

1447172900189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102338466.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 1447172900189 in words is "one trillion, four hundred forty-seven billion, one hundred seventy-two million, nine hundred thousand, one hundred eighty-nine".