143314561 has 4 divisors (see below), whose sum is σ = 154338772. Its totient is φ = 132290352.

The previous prime is 143314531. The next prime is 143314583. The reversal of 143314561 is 165413341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23280625 + 120033936 = 4825^2 + 10956^2 .

It is a cyclic number.

It is not a de Polignac number, because 143314561 - 2⁹ = 143314049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143314531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5512086 + ... + 5512111.

It is an arithmetic number, because the mean of its divisors is an integer number (38584693).

Almost surely, 2^143314561 is an apocalyptic number.

It is an amenable number.

143314561 is a deficient number, since it is larger than the sum of its proper divisors (11024211).

143314561 is a wasteful number, since it uses less digits than its factorization.

143314561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024210.

The product of its digits is 4320, while the sum is 28.

The square root of 143314561 is about 11971.4059742371. The cubic root of 143314561 is about 523.3153084068.

The spelling of 143314561 in words is "one hundred forty-three million, three hundred fourteen thousand, five hundred sixty-one".