1396143 has 32 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 779328.

The previous prime is 1396141. The next prime is 1396183. The reversal of 1396143 is 3416931.

It is not a de Polignac number, because 1396143 - 2¹ = 1396141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1396143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396141) 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 31 ways as a sum of consecutive naturals, for example, 15643 + ... + 15731.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1396143 is an apocalyptic number.

1396143 is a deficient number, since it is larger than the sum of its proper divisors (1023057).

1396143 is an equidigital number, since it uses as much as digits as its factorization.

1396143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 182 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 1396143 is about 1181.5849525108. The cubic root of 1396143 is about 111.7660667859.

The spelling of 1396143 in words is "one million, three hundred ninety-six thousand, one hundred forty-three".