1189144052 has 12 divisors (see below), whose sum is σ = 2081523780. Its totient is φ = 594422976.

The previous prime is 1189144037. The next prime is 1189144057. The reversal of 1189144052 is 2504419811.

It can be written as a sum of positive squares in 2 ways, for example, as 1089264016 + 99880036 = 33004^2 + 9994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189144057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18233 + ... + 52064.

It is an arithmetic number, because the mean of its divisors is an integer number (173460315).

Almost surely, 2^1189144052 is an apocalyptic number.

It is an amenable number.

1189144052 is a deficient number, since it is larger than the sum of its proper divisors (892379728).

1189144052 is a wasteful number, since it uses less digits than its factorization.

1189144052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74530 (or 74528 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1189144052 is about 34483.9680431356. The cubic root of 1189144052 is about 1059.4443664455. Note that the first 3 decimals are identical.

The spelling of 1189144052 in words is "one billion, one hundred eighty-nine million, one hundred forty-four thousand, fifty-two".