1085056729 has 2 divisors, whose sum is σ = 1085056730. Its totient is φ = 1085056728.

The previous prime is 1085056697. The next prime is 1085056747. The reversal of 1085056729 is 9276505801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 791859600 + 293197129 = 28140^2 + 17123^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085056729 - 2⁵ = 1085056697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1085056789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542528364 + 542528365.

It is an arithmetic number, because the mean of its divisors is an integer number (542528365).

Almost surely, 2^1085056729 is an apocalyptic number.

It is an amenable number.

1085056729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085056729 is an equidigital number, since it uses as much as digits as its factorization.

1085056729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 1085056729 is about 32940.1992859788. The cubic root of 1085056729 is about 1027.5843503389.

The spelling of 1085056729 in words is "one billion, eighty-five million, fifty-six thousand, seven hundred twenty-nine".