1121610617 has 12 divisors (see below), whose sum is σ = 1186758144. Its totient is φ = 1058032800.

The previous prime is 1121610601. The next prime is 1121610629. The reversal of 1121610617 is 7160161211.

It is a happy number.

It is not a de Polignac number, because 1121610617 - 2⁴ = 1121610601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121610647) 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 11 ways as a sum of consecutive naturals, for example, 117992 + ... + 127142.

It is an arithmetic number, because the mean of its divisors is an integer number (98896512).

Almost surely, 2^1121610617 is an apocalyptic number.

It is an amenable number.

1121610617 is a deficient number, since it is larger than the sum of its proper divisors (65147527).

1121610617 is an frugal number, since it uses more digits than its factorization.

1121610617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320 (or 9247 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1121610617 is about 33490.4556105169. The cubic root of 1121610617 is about 1038.9963866565.

Adding to 1121610617 its reverse (7160161211), we get a palindrome (8281771828).

The spelling of 1121610617 in words is "one billion, one hundred twenty-one million, six hundred ten thousand, six hundred seventeen".