1345131473 has 8 divisors (see below), whose sum is σ = 1537796160. Its totient is φ = 1152592560.

The previous prime is 1345131427. The next prime is 1345131481. The reversal of 1345131473 is 3741315431.

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

It is not a de Polignac number, because 1345131473 - 2²⁸ = 1076696017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345131413) 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, 7283 + ... + 52376.

It is an arithmetic number, because the mean of its divisors is an integer number (192224520).

Almost surely, 2^1345131473 is an apocalyptic number.

It is an amenable number.

1345131473 is a deficient number, since it is larger than the sum of its proper divisors (192664687).

1345131473 is an equidigital number, since it uses as much as digits as its factorization.

1345131473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62887.

The product of its digits is 15120, while the sum is 32.

The square root of 1345131473 is about 36676.0340413191. The cubic root of 1345131473 is about 1103.8792710105.

The spelling of 1345131473 in words is "one billion, three hundred forty-five million, one hundred thirty-one thousand, four hundred seventy-three".