1161287107 has 8 divisors (see below), whose sum is σ = 1201716000. Its totient is φ = 1120883904.

The previous prime is 1161287059. The next prime is 1161287129. The reversal of 1161287107 is 7017821611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161287107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161287207) 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 7 ways as a sum of consecutive naturals, for example, 152863 + ... + 160279.

It is an arithmetic number, because the mean of its divisors is an integer number (150214500).

Almost surely, 2^1161287107 is an apocalyptic number.

1161287107 is a deficient number, since it is larger than the sum of its proper divisors (40428893).

1161287107 is an equidigital number, since it uses as much as digits as its factorization.

1161287107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12845.

The product of its (nonzero) digits is 4704, while the sum is 34.

The square root of 1161287107 is about 34077.6628746750. The cubic root of 1161287107 is about 1051.1060475049.

The spelling of 1161287107 in words is "one billion, one hundred sixty-one million, two hundred eighty-seven thousand, one hundred seven".