1121052169 has 2 divisors, whose sum is σ = 1121052170. Its totient is φ = 1121052168.

The previous prime is 1121052139. The next prime is 1121052181. The reversal of 1121052169 is 9612501211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114224400 + 6827769 = 33380^2 + 2613^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121052169 - 2⁵ = 1121052137 is a prime.

It is a super-2 number, since 2×1121052169² = 2513515931239209122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121052109) 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, 560526084 + 560526085.

It is an arithmetic number, because the mean of its divisors is an integer number (560526085).

Almost surely, 2^1121052169 is an apocalyptic number.

It is an amenable number.

1121052169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121052169 is an equidigital number, since it uses as much as digits as its factorization.

1121052169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 1121052169 is about 33482.1171522949. The cubic root of 1121052169 is about 1038.8239198575.

The spelling of 1121052169 in words is "one billion, one hundred twenty-one million, fifty-two thousand, one hundred sixty-nine".