1246171161 has 8 divisors (see below), whose sum is σ = 1662583104. Its totient is φ = 830270000.

The previous prime is 1246171127. The next prime is 1246171169. The reversal of 1246171161 is 1611716421.

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

It is a cyclic number.

It is not a de Polignac number, because 1246171161 - 2⁹ = 1246170649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1246171169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121965 + ... + 131786.

It is an arithmetic number, because the mean of its divisors is an integer number (207822888).

Almost surely, 2^1246171161 is an apocalyptic number.

It is an amenable number.

1246171161 is a deficient number, since it is larger than the sum of its proper divisors (416411943).

1246171161 is a wasteful number, since it uses less digits than its factorization.

1246171161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255391.

The product of its digits is 2016, while the sum is 30.

The square root of 1246171161 is about 35301.1495705168. The cubic root of 1246171161 is about 1076.1163556381.

Adding to 1246171161 its reverse (1611716421), we get a palindrome (2857887582).

The spelling of 1246171161 in words is "one billion, two hundred forty-six million, one hundred seventy-one thousand, one hundred sixty-one".