1346816009 has 12 divisors (see below), whose sum is σ = 1709132688. Its totient is φ = 1049466600.

The previous prime is 1346815979. The next prime is 1346816033. The reversal of 1346816009 is 9006186431.

It is not a de Polignac number, because 1346816009 - 2⁸ = 1346815753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1346816609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1248827 + ... + 1249904.

It is an arithmetic number, because the mean of its divisors is an integer number (142427724).

Almost surely, 2^1346816009 is an apocalyptic number.

It is an amenable number.

1346816009 is a deficient number, since it is larger than the sum of its proper divisors (362316679).

1346816009 is a wasteful number, since it uses less digits than its factorization.

1346816009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498756 (or 2498749 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1346816009 is about 36698.9919343842. The cubic root of 1346816009 is about 1104.3398824100.

The spelling of 1346816009 in words is "one billion, three hundred forty-six million, eight hundred sixteen thousand, nine".