1143202105 has 8 divisors (see below), whose sum is σ = 1375522632. Its totient is φ = 912108288.

The previous prime is 1143202087. The next prime is 1143202157. The reversal of 1143202105 is 5012023411.

It can be written as a sum of positive squares in 4 ways, for example, as 261824761 + 881377344 = 16181^2 + 29688^2 .

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 1143202105 - 2⁷ = 1143201977 is a prime.

It is a super-2 number, since 2×1143202105² = 2613822105752862050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304624 + ... + 308353.

It is an arithmetic number, because the mean of its divisors is an integer number (171940329).

Almost surely, 2^1143202105 is an apocalyptic number.

It is an amenable number.

1143202105 is a deficient number, since it is larger than the sum of its proper divisors (232320527).

1143202105 is an equidigital number, since it uses as much as digits as its factorization.

1143202105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613355.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1143202105 is about 33811.2718630932. The cubic root of 1143202105 is about 1045.6211000622.

Adding to 1143202105 its reverse (5012023411), we get a palindrome (6155225516).

The spelling of 1143202105 in words is "one billion, one hundred forty-three million, two hundred two thousand, one hundred five".