2851247131 has 2 divisors, whose sum is σ = 2851247132. Its totient is φ = 2851247130.

The previous prime is 2851247129. The next prime is 2851247159. The reversal of 2851247131 is 1317421582.

2851247131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2851247131 - 2¹ = 2851247129 is a prime.

It is a super-2 number, since 2×2851247131² = 16259220404071462322, which contains 22 as substring.

Together with 2851247129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2851247101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1425623565 + 1425623566.

It is an arithmetic number, because the mean of its divisors is an integer number (1425623566).

Almost surely, 2^2851247131 is an apocalyptic number.

2851247131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2851247131 is an equidigital number, since it uses as much as digits as its factorization.

2851247131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 2851247131 is about 53397.0704346222. The cubic root of 2851247131 is about 1418.0067138020.

The spelling of 2851247131 in words is "two billion, eight hundred fifty-one million, two hundred forty-seven thousand, one hundred thirty-one".