1345442873 has 8 divisors (see below), whose sum is σ = 1389265920. Its totient is φ = 1301646240.

The previous prime is 1345442863. The next prime is 1345442881. The reversal of 1345442873 is 3782445431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345442873 - 2²² = 1341248569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1345442873.

It is not an unprimeable number, because it can be changed into a prime (1345442863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200336 + ... + 206942.

It is an arithmetic number, because the mean of its divisors is an integer number (173658240).

Almost surely, 2^1345442873 is an apocalyptic number.

It is an amenable number.

1345442873 is a deficient number, since it is larger than the sum of its proper divisors (43823047).

1345442873 is an equidigital number, since it uses as much as digits as its factorization.

1345442873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13207.

The product of its digits is 322560, while the sum is 41.

The square root of 1345442873 is about 36680.2790747290. The cubic root of 1345442873 is about 1103.9644476863.

The spelling of 1345442873 in words is "one billion, three hundred forty-five million, four hundred forty-two thousand, eight hundred seventy-three".