1418913709 has 4 divisors (see below), whose sum is σ = 1420367004. Its totient is φ = 1417460416.

The previous prime is 1418913659. The next prime is 1418913731. The reversal of 1418913709 is 9073198141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 874858084 + 544055625 = 29578^2 + 23325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1418913709 - 2¹⁷ = 1418782637 is a prime.

It is a super-2 number, since 2×1418913709² = 4026632227176273362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1418913809) 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, 725182 + ... + 727135.

It is an arithmetic number, because the mean of its divisors is an integer number (355091751).

Almost surely, 2^1418913709 is an apocalyptic number.

It is an amenable number.

1418913709 is a deficient number, since it is larger than the sum of its proper divisors (1453295).

1418913709 is an equidigital number, since it uses as much as digits as its factorization.

1418913709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453294.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1418913709 is about 37668.4710202047. The cubic root of 1418913709 is about 1123.7041762010.

The spelling of 1418913709 in words is "one billion, four hundred eighteen million, nine hundred thirteen thousand, seven hundred nine".