2891131201 has 16 divisors (see below), whose sum is σ = 3362905728. Its totient is φ = 2434320000.

The previous prime is 2891131171. The next prime is 2891131213. The reversal of 2891131201 is 1021311982.

It is not a de Polignac number, because 2891131201 - 2⁵ = 2891131169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2891131201.

It is not an unprimeable number, because it can be changed into a prime (2891131261) 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 15 ways as a sum of consecutive naturals, for example, 116991 + ... + 139531.

It is an arithmetic number, because the mean of its divisors is an integer number (210181608).

Almost surely, 2^2891131201 is an apocalyptic number.

It is an amenable number.

2891131201 is a deficient number, since it is larger than the sum of its proper divisors (471774527).

2891131201 is a wasteful number, since it uses less digits than its factorization.

2891131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22872.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 2891131201 is about 53769.2402866174. The cubic root of 2891131201 is about 1424.5879512043.

The spelling of 2891131201 in words is "two billion, eight hundred ninety-one million, one hundred thirty-one thousand, two hundred one".