105143306 has 4 divisors (see below), whose sum is σ = 157714962. Its totient is φ = 52571652.

The previous prime is 105143279. The next prime is 105143309. The reversal of 105143306 is 603341501.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 104878081 + 265225 = 10241^2 + 515^2 .

It is a super-2 number, since 2×105143306² = 22110229593219272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105143309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26285825 + ... + 26285828.

Almost surely, 2^105143306 is an apocalyptic number.

105143306 is a deficient number, since it is larger than the sum of its proper divisors (52571656).

105143306 is an equidigital number, since it uses as much as digits as its factorization.

105143306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52571655.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 105143306 is about 10253.9409984649. The cubic root of 105143306 is about 471.9839270836.

Adding to 105143306 its reverse (603341501), we get a palindrome (708484807).

The spelling of 105143306 in words is "one hundred five million, one hundred forty-three thousand, three hundred six".