2801442161 has 24 divisors (see below), whose sum is σ = 3365782056. Its totient is φ = 2323157760.

The previous prime is 2801442157. The next prime is 2801442167. The reversal of 2801442161 is 1612441082.

It can be written as a sum of positive squares in 4 ways, for example, as 641051761 + 2160390400 = 25319^2 + 46480^2 .

It is not a de Polignac number, because 2801442161 - 2² = 2801442157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2801442167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323885 + ... + 332421.

It is an arithmetic number, because the mean of its divisors is an integer number (140240919).

Almost surely, 2^2801442161 is an apocalyptic number.

It is an amenable number.

2801442161 is a deficient number, since it is larger than the sum of its proper divisors (564339895).

2801442161 is a wasteful number, since it uses less digits than its factorization.

2801442161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8769 (or 8762 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2801442161 is about 52928.6516076123. The cubic root of 2801442161 is about 1409.7016891507.

It can be divided in two parts, 280 and 1442161, that added together give a palindrome (1442441).

The spelling of 2801442161 in words is "two billion, eight hundred one million, four hundred forty-two thousand, one hundred sixty-one".