1143155152 has 10 divisors (see below), whose sum is σ = 2214863138. Its totient is φ = 571577568.

The previous prime is 1143155141. The next prime is 1143155203. The reversal of 1143155152 is 2515513411.

It can be written as a sum of positive squares in only one way, i.e., 1047428496 + 95726656 = 32364^2 + 9784^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1143155152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35723583 + ... + 35723614.

Almost surely, 2^1143155152 is an apocalyptic number.

It is an amenable number.

1143155152 is a deficient number, since it is larger than the sum of its proper divisors (1071707986).

1143155152 is an equidigital number, since it uses as much as digits as its factorization.

1143155152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71447205 (or 71447199 counting only the distinct ones).

The product of its digits is 3000, while the sum is 28.

The square root of 1143155152 is about 33810.5775165110. The cubic root of 1143155152 is about 1045.6067847982.

Adding to 1143155152 its reverse (2515513411), we get a palindrome (3658668563).

The spelling of 1143155152 in words is "one billion, one hundred forty-three million, one hundred fifty-five thousand, one hundred fifty-two".