143873800249 has 3 divisors (see below), whose sum is σ = 143874179557. Its totient is φ = 143873420942.

The previous prime is 143873800177. The next prime is 143873800297. The reversal of 143873800249 is 942008378341.

It is a happy number.

The square root of 143873800249 is 379307.

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, and also an emirpimes, since its reverse is a distinct semiprime: 942008378341 = 29 ⋅32483047529.

It is not a de Polignac number, because 143873800249 - 2¹⁹ = 143873275961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143873800349) 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, 189654 + ... + 568960.

Almost surely, 2^143873800249 is an apocalyptic number.

143873800249 is the 379307-th square number.

143873800249 is the 189654-th centered octagonal number.

It is an amenable number.

143873800249 is a deficient number, since it is larger than the sum of its proper divisors (379308).

143873800249 is an frugal number, since it uses more digits than its factorization.

143873800249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758614 (or 379307 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

Multiplying 143873800249 by its sum of digits (49), we get a square (7049816212201 = 2655149²).

The spelling of 143873800249 in words is "one hundred forty-three billion, eight hundred seventy-three million, eight hundred thousand, two hundred forty-nine".