7851852131 has 2 divisors, whose sum is σ = 7851852132. Its totient is φ = 7851852130.

The previous prime is 7851852097. The next prime is 7851852133. The reversal of 7851852131 is 1312581587.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7851852131 is a prime.

It is a super-2 number, since 2×7851852131² (a number of 21 digits) contains 22 as substring.

Together with 7851852133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7851852133) 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 as a sum of consecutive naturals, namely, 3925926065 + 3925926066.

It is an arithmetic number, because the mean of its divisors is an integer number (3925926066).

Almost surely, 2^7851852131 is an apocalyptic number.

7851852131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7851852131 is an equidigital number, since it uses as much as digits as its factorization.

7851852131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 41.

The square root of 7851852131 is about 88610.6772968134. The cubic root of 7851852131 is about 1987.5773428019.

The spelling of 7851852131 in words is "seven billion, eight hundred fifty-one million, eight hundred fifty-two thousand, one hundred thirty-one".