1418853409 has 2 divisors, whose sum is σ = 1418853410. Its totient is φ = 1418853408.

The previous prime is 1418853383. The next prime is 1418853433. The reversal of 1418853409 is 9043588141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1186595809 + 232257600 = 34447^2 + 15240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1418853409 - 2⁷ = 1418853281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1418853809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709426704 + 709426705.

It is an arithmetic number, because the mean of its divisors is an integer number (709426705).

Almost surely, 2^1418853409 is an apocalyptic number.

It is an amenable number.

1418853409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1418853409 is an equidigital number, since it uses as much as digits as its factorization.

1418853409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1418853409 is about 37667.6706075648. The cubic root of 1418853409 is about 1123.6882578448.

The spelling of 1418853409 in words is "one billion, four hundred eighteen million, eight hundred fifty-three thousand, four hundred nine".