1143152205 has 32 divisors (see below), whose sum is σ = 2015561856. Its totient is φ = 549690624.

The previous prime is 1143152203. The next prime is 1143152237. The reversal of 1143152205 is 5022513411.

It is a happy number.

It is not a de Polignac number, because 1143152205 - 2¹ = 1143152203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143152203) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 59782 + ... + 76551.

It is an arithmetic number, because the mean of its divisors is an integer number (62986308).

Almost surely, 2^1143152205 is an apocalyptic number.

1143152205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143152205 is a deficient number, since it is larger than the sum of its proper divisors (872409651).

1143152205 is a wasteful number, since it uses less digits than its factorization.

1143152205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136397.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1143152205 is about 33810.5339354468. The cubic root of 1143152205 is about 1045.6058862892.

Adding to 1143152205 its reverse (5022513411), we get a palindrome (6165665616).

It can be divided in two parts, 11431 and 52205, that added together give a palindrome (63636).

The spelling of 1143152205 in words is "one billion, one hundred forty-three million, one hundred fifty-two thousand, two hundred five".