1161072107 has 4 divisors (see below), whose sum is σ = 1250385360. Its totient is φ = 1071758856.

The previous prime is 1161072091. The next prime is 1161072163. The reversal of 1161072107 is 7012701611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1161072107 - 2⁴ = 1161072091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161072607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44656607 + ... + 44656632.

It is an arithmetic number, because the mean of its divisors is an integer number (312596340).

Almost surely, 2^1161072107 is an apocalyptic number.

1161072107 is a deficient number, since it is larger than the sum of its proper divisors (89313253).

1161072107 is an equidigital number, since it uses as much as digits as its factorization.

1161072107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89313252.

The product of its (nonzero) digits is 588, while the sum is 26.

The square root of 1161072107 is about 34074.5081695980. The cubic root of 1161072107 is about 1051.0411764532.

Adding to 1161072107 its reverse (7012701611), we get a palindrome (8173773718).

The spelling of 1161072107 in words is "one billion, one hundred sixty-one million, seventy-two thousand, one hundred seven".