143544361 has 3 divisors (see below), whose sum is σ = 143556343. Its totient is φ = 143532380.

The previous prime is 143544347. The next prime is 143544367. The reversal of 143544361 is 163445341.

It is a happy number.

The square root of 143544361 is 11981.

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., 138791961 + 4752400 = 11781^2 + 2180^2 .

It is not a de Polignac number, because 143544361 - 2⁹ = 143543849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143544367) 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, 5991 + ... + 17971.

Almost surely, 2^143544361 is an apocalyptic number.

143544361 is the 11981-st square number.

143544361 is the 5991-st centered octagonal number.

It is an amenable number.

143544361 is a deficient number, since it is larger than the sum of its proper divisors (11982).

143544361 is an frugal number, since it uses more digits than its factorization.

143544361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23962 (or 11981 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The cubic root of 143544361 is about 523.5948651101.

It can be divided in two parts, 1435 and 44361, that added together give a square (45796 = 214²).

The spelling of 143544361 in words is "one hundred forty-three million, five hundred forty-four thousand, three hundred sixty-one".