1119161797 has 8 divisors (see below), whose sum is σ = 1213342200. Its totient is φ = 1026137280.

The previous prime is 1119161779. The next prime is 1119161803. The reversal of 1119161797 is 7971619111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15992001 + 1103169796 = 3999^2 + 33214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1119161797 - 2²⁷ = 984944069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119162797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286954 + ... + 290827.

It is an arithmetic number, because the mean of its divisors is an integer number (151667775).

Almost surely, 2^1119161797 is an apocalyptic number.

It is an amenable number.

1119161797 is a deficient number, since it is larger than the sum of its proper divisors (94180403).

1119161797 is a wasteful number, since it uses less digits than its factorization.

1119161797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577943.

The product of its digits is 23814, while the sum is 43.

The square root of 1119161797 is about 33453.8756648613. The cubic root of 1119161797 is about 1038.2396864209.

The spelling of 1119161797 in words is "one billion, one hundred nineteen million, one hundred sixty-one thousand, seven hundred ninety-seven".