143256951049 has 3 divisors (see below), whose sum is σ = 143257329543. Its totient is φ = 143256572556.

The previous prime is 143256951037. The next prime is 143256951059. The reversal of 143256951049 is 940159652341.

The square root of 143256951049 is 378493.

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 can be written as a sum of positive squares in only one way, i.e., 121609125625 + 21647825424 = 348725^2 + 147132^2 .

It is not a de Polignac number, because 143256951049 - 2⁵ = 143256951017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143256950993 and 143256951011.

It is not an unprimeable number, because it can be changed into a prime (143256951059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 189247 + ... + 567739.

It is an arithmetic number, because the mean of its divisors is an integer number (47752443181).

Almost surely, 2^143256951049 is an apocalyptic number.

143256951049 is the 378493-rd square number.

143256951049 is the 189247-th centered octagonal number.

It is an amenable number.

143256951049 is a deficient number, since it is larger than the sum of its proper divisors (378494).

143256951049 is an frugal number, since it uses more digits than its factorization.

143256951049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756986 (or 378493 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

Multiplying 143256951049 by its sum of digits (49), we get a square (7019590601401 = 2649451²).

The spelling of 143256951049 in words is "one hundred forty-three billion, two hundred fifty-six million, nine hundred fifty-one thousand, forty-nine".