1161412305 has 16 divisors (see below), whose sum is σ = 1874707200. Its totient is φ = 613937408.

The previous prime is 1161412283. The next prime is 1161412309. The reversal of 1161412305 is 5032141611.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1161412305 - 2⁷ = 1161412177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1161412309) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 340905 + ... + 344294.

It is an arithmetic number, because the mean of its divisors is an integer number (117169200).

Almost surely, 2^1161412305 is an apocalyptic number.

1161412305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1161412305 is a deficient number, since it is larger than the sum of its proper divisors (713294895).

1161412305 is a wasteful number, since it uses less digits than its factorization.

1161412305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685320.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1161412305 is about 34079.4997762585. The cubic root of 1161412305 is about 1051.1438192857.

Adding to 1161412305 its reverse (5032141611), we get a palindrome (6193553916).

The spelling of 1161412305 in words is "one billion, one hundred sixty-one million, four hundred twelve thousand, three hundred five".