1119418409 has 2 divisors, whose sum is σ = 1119418410. Its totient is φ = 1119418408.

The previous prime is 1119418373. The next prime is 1119418439. The reversal of 1119418409 is 9048149111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 591705625 + 527712784 = 24325^2 + 22972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1119418409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1119418439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559709204 + 559709205.

It is an arithmetic number, because the mean of its divisors is an integer number (559709205).

Almost surely, 2^1119418409 is an apocalyptic number.

It is an amenable number.

1119418409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1119418409 is an equidigital number, since it uses as much as digits as its factorization.

1119418409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 1119418409 is about 33457.7107555194. The cubic root of 1119418409 is about 1038.3190328279.

The spelling of 1119418409 in words is "one billion, one hundred nineteen million, four hundred eighteen thousand, four hundred nine".