1345143 has 8 divisors (see below), whose sum is σ = 1888000. Its totient is φ = 849528.

The previous prime is 1345139. The next prime is 1345153. The reversal of 1345143 is 3415431.

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

It is not a de Polignac number, because 1345143 - 2² = 1345139 is a prime.

It is a Duffinian number.

1345143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11743 + ... + 11856.

It is an arithmetic number, because the mean of its divisors is an integer number (236000).

2^1345143 is an apocalyptic number.

1345143 is a deficient number, since it is larger than the sum of its proper divisors (542857).

1345143 is a wasteful number, since it uses less digits than its factorization.

1345143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23621.

The product of its digits is 720, while the sum is 21.

The square root of 1345143 is about 1159.8030005134. The cubic root of 1345143 is about 110.3882424204.

The spelling of 1345143 in words is "one million, three hundred forty-five thousand, one hundred forty-three".