143752447609 has 3 divisors (see below), whose sum is σ = 143752826757. Its totient is φ = 143752068462.

The previous prime is 143752447589. The next prime is 143752447703. The reversal of 143752447609 is 906744257341.

It is a happy number.

The square root of 143752447609 is 379147.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 143752447609 - 2⁷ = 143752447481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143752447109) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 189574 + ... + 568720.

It is an arithmetic number, because the mean of its divisors is an integer number (47917608919).

Almost surely, 2^143752447609 is an apocalyptic number.

143752447609 is the 379147-th square number.

143752447609 is the 189574-th centered octagonal number.

It is an amenable number.

143752447609 is a deficient number, since it is larger than the sum of its proper divisors (379148).

143752447609 is an frugal number, since it uses more digits than its factorization.

143752447609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758294 (or 379147 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

It can be divided in two parts, 143752 and 447609, that added together give a square (591361 = 769²).

The spelling of 143752447609 in words is "one hundred forty-three billion, seven hundred fifty-two million, four hundred forty-seven thousand, six hundred nine".