1085720063 has 2 divisors, whose sum is σ = 1085720064. Its totient is φ = 1085720062.

The previous prime is 1085720033. The next prime is 1085720071. The reversal of 1085720063 is 3600275801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1085720063 - 2²² = 1081525759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085720033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542860031 + 542860032.

It is an arithmetic number, because the mean of its divisors is an integer number (542860032).

Almost surely, 2^1085720063 is an apocalyptic number.

1085720063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085720063 is an equidigital number, since it uses as much as digits as its factorization.

1085720063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1085720063 is about 32950.2665087856. The cubic root of 1085720063 is about 1027.7937073751.

Adding to 1085720063 its reverse (3600275801), we get a palindrome (4685995864).

The spelling of 1085720063 in words is "one billion, eighty-five million, seven hundred twenty thousand, sixty-three".