1326143 has 24 divisors (see below), whose sum is σ = 1756800. Its totient is φ = 977184.

The previous prime is 1326137. The next prime is 1326151. The reversal of 1326143 is 3416231.

It is not a de Polignac number, because 1326143 - 2¹⁰ = 1325119 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22448 + ... + 22506.

It is an arithmetic number, because the mean of its divisors is an integer number (73200).

2^1326143 is an apocalyptic number.

1326143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1326143 is a deficient number, since it is larger than the sum of its proper divisors (430657).

1326143 is a wasteful number, since it uses less digits than its factorization.

1326143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 98 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1326143 is about 1151.5828237691. The cubic root of 1326143 is about 109.8660352629.

The spelling of 1326143 in words is "one million, three hundred twenty-six thousand, one hundred forty-three".