996519031 has 2 divisors, whose sum is σ = 996519032. Its totient is φ = 996519030.

The previous prime is 996519019. The next prime is 996519053. The reversal of 996519031 is 130915699.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996519031 is a prime.

It is a super-2 number, since 2×996519031² = 1986100358290357922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996519001) 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, 498259515 + 498259516.

It is an arithmetic number, because the mean of its divisors is an integer number (498259516).

Almost surely, 2^996519031 is an apocalyptic number.

996519031 is the 14118-th centered decagonal number.

996519031 is a deficient number, since it is larger than the sum of its proper divisors (1).

996519031 is an equidigital number, since it uses as much as digits as its factorization.

996519031 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 996519031 is about 31567.6896683935. The cubic root of 996519031 is about 998.8383280408.

The spelling of 996519031 in words is "nine hundred ninety-six million, five hundred nineteen thousand, thirty-one".