4891229131 has 2 divisors, whose sum is σ = 4891229132. Its totient is φ = 4891229130.

The previous prime is 4891229129. The next prime is 4891229143. The reversal of 4891229131 is 1319221984.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4891229131 - 2¹ = 4891229129 is a prime.

It is a super-2 number, since 2×4891229131² = 47848244823886030322, which contains 22 as substring.

Together with 4891229129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4891229531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445614565 + 2445614566.

It is an arithmetic number, because the mean of its divisors is an integer number (2445614566).

Almost surely, 2^4891229131 is an apocalyptic number.

4891229131 is a deficient number, since it is larger than the sum of its proper divisors (1).

4891229131 is an equidigital number, since it uses as much as digits as its factorization.

4891229131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 4891229131 is about 69937.3228755577. The cubic root of 4891229131 is about 1697.4852242224.

The spelling of 4891229131 in words is "four billion, eight hundred ninety-one million, two hundred twenty-nine thousand, one hundred thirty-one".