1345929009 has 4 divisors (see below), whose sum is σ = 1794572016. Its totient is φ = 897286004.

The previous prime is 1345929007. The next prime is 1345929043. The reversal of 1345929009 is 9009295431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345929009 - 2¹ = 1345929007 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1345929007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224321499 + ... + 224321504.

It is an arithmetic number, because the mean of its divisors is an integer number (448643004).

Almost surely, 2^1345929009 is an apocalyptic number.

It is an amenable number.

1345929009 is a deficient number, since it is larger than the sum of its proper divisors (448643007).

1345929009 is an equidigital number, since it uses as much as digits as its factorization.

1345929009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448643006.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1345929009 is about 36686.9051433887. The cubic root of 1345929009 is about 1104.0973933126.

The spelling of 1345929009 in words is "one billion, three hundred forty-five million, nine hundred twenty-nine thousand, nine".