1284141161 has 4 divisors (see below), whose sum is σ = 1284272772. Its totient is φ = 1284009552.

The previous prime is 1284141143. The next prime is 1284141227. The reversal of 1284141161 is 1611414821.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1075512025 + 208629136 = 32795^2 + 14444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1284141161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1284141101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49886 + ... + 71111.

It is an arithmetic number, because the mean of its divisors is an integer number (321068193).

Almost surely, 2^1284141161 is an apocalyptic number.

It is an amenable number.

1284141161 is a deficient number, since it is larger than the sum of its proper divisors (131611).

1284141161 is a wasteful number, since it uses less digits than its factorization.

1284141161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131610.

The product of its digits is 1536, while the sum is 29.

The square root of 1284141161 is about 35834.9153898820. The cubic root of 1284141161 is about 1086.9367070217.

Adding to 1284141161 its reverse (1611414821), we get a palindrome (2895555982).

The spelling of 1284141161 in words is "one billion, two hundred eighty-four million, one hundred forty-one thousand, one hundred sixty-one".