1085768731 has 2 divisors, whose sum is σ = 1085768732. Its totient is φ = 1085768730.

The previous prime is 1085768693. The next prime is 1085768743. The reversal of 1085768731 is 1378675801.

It is a strong prime.

It is an emirp because it is prime and its reverse (1378675801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1085768731 - 2¹¹ = 1085766683 is a prime.

It is a super-2 number, since 2×1085768731² = 2357787474434700722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1085768531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542884365 + 542884366.

It is an arithmetic number, because the mean of its divisors is an integer number (542884366).

Almost surely, 2^1085768731 is an apocalyptic number.

1085768731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085768731 is an equidigital number, since it uses as much as digits as its factorization.

1085768731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 1085768731 is about 32951.0050074349. The cubic root of 1085768731 is about 1027.8090642854.

The spelling of 1085768731 in words is "one billion, eighty-five million, seven hundred sixty-eight thousand, seven hundred thirty-one".