996145231 has 2 divisors, whose sum is σ = 996145232. Its totient is φ = 996145230.

The previous prime is 996145177. The next prime is 996145253. The reversal of 996145231 is 132541699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 996145231 - 2¹⁹ = 995620943 is a prime.

It is a super-2 number, since 2×996145231² = 1984610642488086722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996145261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498072615 + 498072616.

It is an arithmetic number, because the mean of its divisors is an integer number (498072616).

Almost surely, 2^996145231 is an apocalyptic number.

996145231 is a deficient number, since it is larger than the sum of its proper divisors (1).

996145231 is an equidigital number, since it uses as much as digits as its factorization.

996145231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 996145231 is about 31561.7685024144. The cubic root of 996145231 is about 998.7134224280.

The spelling of 996145231 in words is "nine hundred ninety-six million, one hundred forty-five thousand, two hundred thirty-one".