999065131 has 2 divisors, whose sum is σ = 999065132. Its totient is φ = 999065130.

The previous prime is 999065101. The next prime is 999065143. The reversal of 999065131 is 131560999.

999065131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999065131 - 2⁷ = 999065003 is a prime.

It is a super-2 number, since 2×999065131² = 1996262271960094322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (999065101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499532565 + 499532566.

It is an arithmetic number, because the mean of its divisors is an integer number (499532566).

Almost surely, 2^999065131 is an apocalyptic number.

999065131 is a deficient number, since it is larger than the sum of its proper divisors (1).

999065131 is an equidigital number, since it uses as much as digits as its factorization.

999065131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 999065131 is about 31607.9915685891. The cubic root of 999065131 is about 999.6882798406.

The spelling of 999065131 in words is "nine hundred ninety-nine million, sixty-five thousand, one hundred thirty-one".