1182288703561 has 9 divisors (see below), whose sum is σ = 1375324284711. Its totient is φ = 1013383793352.

The previous prime is 1182288703543. The next prime is 1182288703591. The reversal of 1182288703561 is 1653078822811.

The square root of 1182288703561 is 1087331.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 913180916025 + 269107787536 = 955605^2 + 518756^2 .

It is not a de Polignac number, because 1182288703561 - 2⁵ = 1182288703529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1182288703499 and 1182288703508.

It is not an unprimeable number, because it can be changed into a prime (1182288703591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7533651 + ... + 7688983.

Almost surely, 2^{1182288703561} is an apocalyptic number.

1182288703561 is the 1087331-st square number.

1182288703561 is the 543666-th centered octagonal number.

It is an amenable number.

1182288703561 is a deficient number, since it is larger than the sum of its proper divisors (193035581150).

1182288703561 is an frugal number, since it uses more digits than its factorization.

1182288703561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310680 (or 155340 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 52.

The spelling of 1182288703561 in words is "one trillion, one hundred eighty-two billion, two hundred eighty-eight million, seven hundred three thousand, five hundred sixty-one".