131028851 has 2 divisors, whose sum is σ = 131028852. Its totient is φ = 131028850.

The previous prime is 131028839. The next prime is 131028853. The reversal of 131028851 is 158820131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131028851 - 2⁶ = 131028787 is a prime.

Together with 131028853, 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 (131028853) 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 as a sum of consecutive naturals, namely, 65514425 + 65514426.

It is an arithmetic number, because the mean of its divisors is an integer number (65514426).

Almost surely, 2^131028851 is an apocalyptic number.

131028851 is a deficient number, since it is larger than the sum of its proper divisors (1).

131028851 is an equidigital number, since it uses as much as digits as its factorization.

131028851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 131028851 is about 11446.7834346597. The cubic root of 131028851 is about 507.9125893271.

Adding to 131028851 its reverse (158820131), we get a palindrome (289848982).

The spelling of 131028851 in words is "one hundred thirty-one million, twenty-eight thousand, eight hundred fifty-one".