1161712167 has 48 divisors (see below), whose sum is σ = 1953912576. Its totient is φ = 600969600.

The previous prime is 1161712159. The next prime is 1161712169. The reversal of 1161712167 is 7612171611.

It is not a de Polignac number, because 1161712167 - 2³ = 1161712159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161712169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 713208 + ... + 714834.

It is an arithmetic number, because the mean of its divisors is an integer number (40706512).

Almost surely, 2^1161712167 is an apocalyptic number.

1161712167 is a deficient number, since it is larger than the sum of its proper divisors (792200409).

1161712167 is a wasteful number, since it uses less digits than its factorization.

1161712167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1929 counting only the distinct ones).

The product of its digits is 3528, while the sum is 33.

The square root of 1161712167 is about 34083.8989407022. The cubic root of 1161712167 is about 1051.2342755241.

Adding to 1161712167 its reverse (7612171611), we get a palindrome (8773883778).

The spelling of 1161712167 in words is "one billion, one hundred sixty-one million, seven hundred twelve thousand, one hundred sixty-seven".