1226143 has 8 divisors (see below), whose sum is σ = 1301120. Its totient is φ = 1153440.

The previous prime is 1226117. The next prime is 1226179. The reversal of 1226143 is 3416221.

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

It is a cyclic number.

It is not a de Polignac number, because 1226143 - 2⁵ = 1226111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1226143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227143) 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, 613 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (162640).

2^1226143 is an apocalyptic number.

1226143 is a deficient number, since it is larger than the sum of its proper divisors (74977).

1226143 is a wasteful number, since it uses less digits than its factorization.

1226143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137.

The product of its digits is 288, while the sum is 19.

The square root of 1226143 is about 1107.3134154340. The cubic root of 1226143 is about 107.0320165058.

It can be divided in two parts, 1226 and 143, that added together give a square (1369 = 37²).

The spelling of 1226143 in words is "one million, two hundred twenty-six thousand, one hundred forty-three".