1345709783 has 32 divisors (see below), whose sum is σ = 1674473472. Its totient is φ = 1065715200.

The previous prime is 1345709767. The next prime is 1345709797. The reversal of 1345709783 is 3879075431.

It is not a de Polignac number, because 1345709783 - 2⁴ = 1345709767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345709753) 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 31 ways as a sum of consecutive naturals, for example, 128285 + ... + 138377.

It is an arithmetic number, because the mean of its divisors is an integer number (52327296).

Almost surely, 2^1345709783 is an apocalyptic number.

1345709783 is a deficient number, since it is larger than the sum of its proper divisors (328763689).

1345709783 is a wasteful number, since it uses less digits than its factorization.

1345709783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10175.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 1345709783 is about 36683.9172254000. The cubic root of 1345709783 is about 1104.0374446338.

The spelling of 1345709783 in words is "one billion, three hundred forty-five million, seven hundred nine thousand, seven hundred eighty-three".