1112797161 has 12 divisors (see below), whose sum is σ = 1836998592. Its totient is φ = 635884056.

The previous prime is 1112797139. The next prime is 1112797199. The reversal of 1112797161 is 1617972111.

It is not a de Polignac number, because 1112797161 - 2⁶ = 1112797097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1112797121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8831661 + ... + 8831786.

It is an arithmetic number, because the mean of its divisors is an integer number (153083216).

Almost surely, 2^1112797161 is an apocalyptic number.

It is an amenable number.

1112797161 is a deficient number, since it is larger than the sum of its proper divisors (724201431).

1112797161 is a wasteful number, since it uses less digits than its factorization.

1112797161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17663460 (or 17663457 counting only the distinct ones).

The product of its digits is 5292, while the sum is 36.

The square root of 1112797161 is about 33358.6144946099. The cubic root of 1112797161 is about 1036.2677987827.

The spelling of 1112797161 in words is "one billion, one hundred twelve million, seven hundred ninety-seven thousand, one hundred sixty-one".