1121565052 has 24 divisors (see below), whose sum is σ = 1977767792. Its totient is φ = 556502400.

The previous prime is 1121565023. The next prime is 1121565083. The reversal of 1121565052 is 2505651211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121565052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412048 + ... + 414760.

Almost surely, 2^1121565052 is an apocalyptic number.

It is an amenable number.

1121565052 is a deficient number, since it is larger than the sum of its proper divisors (856202740).

1121565052 is a wasteful number, since it uses less digits than its factorization.

1121565052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469 (or 3467 counting only the distinct ones).

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

The square root of 1121565052 is about 33489.7753351676. The cubic root of 1121565052 is about 1038.9823168564.

It can be divided in two parts, 11215 and 65052, that added together give a palindrome (76267).

The spelling of 1121565052 in words is "one billion, one hundred twenty-one million, five hundred sixty-five thousand, fifty-two".