1109273629 has 2 divisors, whose sum is σ = 1109273630. Its totient is φ = 1109273628.

The previous prime is 1109273603. The next prime is 1109273639. The reversal of 1109273629 is 9263729011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1090980900 + 18292729 = 33030^2 + 4277^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109273629 - 2⁵ = 1109273597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1109273591 and 1109273600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1109273639) 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, 554636814 + 554636815.

It is an arithmetic number, because the mean of its divisors is an integer number (554636815).

Almost surely, 2^1109273629 is an apocalyptic number.

It is an amenable number.

1109273629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109273629 is an equidigital number, since it uses as much as digits as its factorization.

1109273629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1109273629 is about 33305.7596970854. The cubic root of 1109273629 is about 1035.1729052151.

The spelling of 1109273629 in words is "one billion, one hundred nine million, two hundred seventy-three thousand, six hundred twenty-nine".