1109552401 has 2 divisors, whose sum is σ = 1109552402. Its totient is φ = 1109552400.

The previous prime is 1109552357. The next prime is 1109552467. The reversal of 1109552401 is 1042559011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 901500625 + 208051776 = 30025^2 + 14424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109552401 - 2⁷ = 1109552273 is a prime.

It is a super-2 number, since 2×1109552401² = 2462213061129729602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1109552401.

It is not a weakly prime, because it can be changed into another prime (1109552491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554776200 + 554776201.

It is an arithmetic number, because the mean of its divisors is an integer number (554776201).

Almost surely, 2^1109552401 is an apocalyptic number.

It is an amenable number.

1109552401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109552401 is an equidigital number, since it uses as much as digits as its factorization.

1109552401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1109552401 is about 33309.9444760870. The cubic root of 1109552401 is about 1035.2596145243.

The spelling of 1109552401 in words is "one billion, one hundred nine million, five hundred fifty-two thousand, four hundred one".