1180304645 has 16 divisors (see below), whose sum is σ = 1615042800. Its totient is φ = 820337664.

The previous prime is 1180304641. The next prime is 1180304651. The reversal of 1180304645 is 5464030811.

It can be written as a sum of positive squares in 8 ways, for example, as 20016676 + 1160287969 = 4474^2 + 34063^2 .

It is a cyclic number.

It is not a de Polignac number, because 1180304645 - 2² = 1180304641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180304641) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 532970 + ... + 535179.

It is an arithmetic number, because the mean of its divisors is an integer number (100940175).

Almost surely, 2^1180304645 is an apocalyptic number.

It is an amenable number.

1180304645 is a deficient number, since it is larger than the sum of its proper divisors (434738155).

1180304645 is a wasteful number, since it uses less digits than its factorization.

1180304645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068184.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1180304645 is about 34355.5620678807. The cubic root of 1180304645 is about 1056.8127367034.

The spelling of 1180304645 in words is "one billion, one hundred eighty million, three hundred four thousand, six hundred forty-five".