1090801729 has 2 divisors, whose sum is σ = 1090801730. Its totient is φ = 1090801728.

The previous prime is 1090801661. The next prime is 1090801739. The reversal of 1090801729 is 9271080901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 933424704 + 157377025 = 30552^2 + 12545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1090801729 - 2¹³ = 1090793537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1090801739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545400864 + 545400865.

It is an arithmetic number, because the mean of its divisors is an integer number (545400865).

Almost surely, 2^1090801729 is an apocalyptic number.

It is an amenable number.

1090801729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090801729 is an equidigital number, since it uses as much as digits as its factorization.

1090801729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 1090801729 is about 33027.2876421907. The cubic root of 1090801729 is about 1029.3947268618.

The spelling of 1090801729 in words is "one billion, ninety million, eight hundred one thousand, seven hundred twenty-nine".