143087436361 has 3 divisors (see below), whose sum is σ = 143087814631. Its totient is φ = 143087058092.

The previous prime is 143087436347. The next prime is 143087436383. The reversal of 143087436361 is 163634780341.

The square root of 143087436361 is 378269.

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: 163634780341 = 23 ⋅7114555667.

It can be written as a sum of positive squares in only one way, i.e., 139329746361 + 3757690000 = 373269^2 + 61300^2 .

It is not a de Polignac number, because 143087436361 - 2¹¹ = 143087434313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143087436301) 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 2 ways as a sum of consecutive naturals, for example, 189135 + ... + 567403.

Almost surely, 2^143087436361 is an apocalyptic number.

143087436361 is the 378269-th square number.

143087436361 is the 189135-th centered octagonal number.

It is an amenable number.

143087436361 is a deficient number, since it is larger than the sum of its proper divisors (378270).

143087436361 is an frugal number, since it uses more digits than its factorization.

143087436361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756538 (or 378269 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 143087436361 in words is "one hundred forty-three billion, eighty-seven million, four hundred thirty-six thousand, three hundred sixty-one".