1814079109 has 2 divisors, whose sum is σ = 1814079110. Its totient is φ = 1814079108.

The previous prime is 1814079101. The next prime is 1814079139. The reversal of 1814079109 is 9019704181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1440430209 + 373648900 = 37953^2 + 19330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1814079109 - 2³ = 1814079101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1814079101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907039554 + 907039555.

It is an arithmetic number, because the mean of its divisors is an integer number (907039555).

Almost surely, 2^1814079109 is an apocalyptic number.

It is an amenable number.

1814079109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814079109 is an equidigital number, since it uses as much as digits as its factorization.

1814079109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 1814079109 is about 42592.0075718438. The cubic root of 1814079109 is about 1219.6037208426.

The spelling of 1814079109 in words is "one billion, eight hundred fourteen million, seventy-nine thousand, one hundred nine".