1150561556 has 6 divisors (see below), whose sum is σ = 2013482730. Its totient is φ = 575280776.

The previous prime is 1150561543. The next prime is 1150561561. The reversal of 1150561556 is 6551650511.

It can be written as a sum of positive squares in only one way, i.e., 695165956 + 455395600 = 26366^2 + 21340^2 .

It is a super-2 number, since 2×1150561556² = 2647583788290282272, which contains 22 as substring.

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, 143820191 + ... + 143820198.

It is an arithmetic number, because the mean of its divisors is an integer number (335580455).

Almost surely, 2^1150561556 is an apocalyptic number.

It is an amenable number.

1150561556 is a deficient number, since it is larger than the sum of its proper divisors (862921174).

1150561556 is a wasteful number, since it uses less digits than its factorization.

1150561556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287640393 (or 287640391 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1150561556 is about 33919.9285966230. The cubic root of 1150561556 is about 1047.8600576984.

The spelling of 1150561556 in words is "one billion, one hundred fifty million, five hundred sixty-one thousand, five hundred fifty-six".