1395143 has 4 divisors (see below), whose sum is σ = 1405320. Its totient is φ = 1384968.

The previous prime is 1395137. The next prime is 1395167. The reversal of 1395143 is 3415931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1395143 - 2⁴ = 1395127 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395643) 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 3 ways as a sum of consecutive naturals, for example, 4880 + ... + 5157.

It is an arithmetic number, because the mean of its divisors is an integer number (351330).

2^1395143 is an apocalyptic number.

1395143 is a deficient number, since it is larger than the sum of its proper divisors (10177).

1395143 is a wasteful number, since it uses less digits than its factorization.

1395143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10176.

The product of its digits is 1620, while the sum is 26.

The square root of 1395143 is about 1181.1617162777. The cubic root of 1395143 is about 111.7393759283.

The spelling of 1395143 in words is "one million, three hundred ninety-five thousand, one hundred forty-three".