143146105 has 8 divisors (see below), whose sum is σ = 172319112. Its totient is φ = 114154368.

The previous prime is 143146093. The next prime is 143146109. The reversal of 143146105 is 501641341.

It can be written as a sum of positive squares in 4 ways, for example, as 16088121 + 127057984 = 4011^2 + 11272^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143146105 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143146105.

It is not an unprimeable number, because it can be changed into a prime (143146109) 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, 43572 + ... + 46741.

It is an arithmetic number, because the mean of its divisors is an integer number (21539889).

Almost surely, 2^143146105 is an apocalyptic number.

It is an amenable number.

143146105 is a deficient number, since it is larger than the sum of its proper divisors (29173007).

143146105 is an equidigital number, since it uses as much as digits as its factorization.

143146105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90635.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 143146105 is about 11964.3681404410. The cubic root of 143146105 is about 523.1101881321.

Adding to 143146105 its reverse (501641341), we get a palindrome (644787446).

The spelling of 143146105 in words is "one hundred forty-three million, one hundred forty-six thousand, one hundred five".