1119804997 has 4 divisors (see below), whose sum is σ = 1147117356. Its totient is φ = 1092492640.

The previous prime is 1119804991. The next prime is 1119805019. The reversal of 1119804997 is 7994089111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7994089111 = 131 ⋅61023581.

It can be written as a sum of positive squares in 2 ways, for example, as 121308196 + 998496801 = 11014^2 + 31599^2 .

It is a cyclic number.

It is not a de Polignac number, because 1119804997 - 2²³ = 1111416389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1119804997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119804991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13656118 + ... + 13656199.

It is an arithmetic number, because the mean of its divisors is an integer number (286779339).

Almost surely, 2^1119804997 is an apocalyptic number.

It is an amenable number.

1119804997 is a deficient number, since it is larger than the sum of its proper divisors (27312359).

1119804997 is an equidigital number, since it uses as much as digits as its factorization.

1119804997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27312358.

The product of its (nonzero) digits is 163296, while the sum is 49.

The square root of 1119804997 is about 33463.4875199821. The cubic root of 1119804997 is about 1038.4385459239.

The spelling of 1119804997 in words is "one billion, one hundred nineteen million, eight hundred four thousand, nine hundred ninety-seven".