1015996231 has 2 divisors, whose sum is σ = 1015996232. Its totient is φ = 1015996230.

The previous prime is 1015996229. The next prime is 1015996249. The reversal of 1015996231 is 1326995101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1015996231 - 2¹ = 1015996229 is a prime.

It is a super-2 number, since 2×1015996231² = 2064496682812410722, which contains 22 as substring.

Together with 1015996229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1015996271) 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, 507998115 + 507998116.

It is an arithmetic number, because the mean of its divisors is an integer number (507998116).

Almost surely, 2^1015996231 is an apocalyptic number.

1015996231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015996231 is an equidigital number, since it uses as much as digits as its factorization.

1015996231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 1015996231 is about 31874.6957789404. The cubic root of 1015996231 is about 1005.3038959525.

The spelling of 1015996231 in words is "one billion, fifteen million, nine hundred ninety-six thousand, two hundred thirty-one".