143106913 has 8 divisors (see below), whose sum is σ = 145518632. Its totient is φ = 140714496.

The previous prime is 143106893. The next prime is 143106923. The reversal of 143106913 is 319601341.

It can be written as a sum of positive squares in 4 ways, for example, as 1306449 + 141800464 = 1143^2 + 11908^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143106913 - 2¹⁷ = 142975841 is a prime.

It is a deceptive number, since it divides R_143106912.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143106923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10531 + ... + 19927.

It is an arithmetic number, because the mean of its divisors is an integer number (18189829).

Almost surely, 2^143106913 is an apocalyptic number.

It is an amenable number.

143106913 is a deficient number, since it is larger than the sum of its proper divisors (2411719).

143106913 is an equidigital number, since it uses as much as digits as its factorization.

143106913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9651.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 143106913 is about 11962.7301649749. The cubic root of 143106913 is about 523.0624429610.

The spelling of 143106913 in words is "one hundred forty-three million, one hundred six thousand, nine hundred thirteen".