1081423 has 16 divisors (see below), whose sum is σ = 1336320. Its totient is φ = 854496.

The previous prime is 1081417. The next prime is 1081429. The reversal of 1081423 is 3241801.

It is an interprime number because it is at equal distance from previous prime (1081417) and next prime (1081429).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 1081423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6165 + ... + 6337.

It is an arithmetic number, because the mean of its divisors is an integer number (83520).

2^1081423 is an apocalyptic number.

1081423 is the 658-th heptagonal number.

1081423 is a deficient number, since it is larger than the sum of its proper divisors (254897).

1081423 is a wasteful number, since it uses less digits than its factorization.

1081423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1081423 is about 1039.9149003644. The cubic root of 1081423 is about 102.6435980572.

The spelling of 1081423 in words is "one million, eighty-one thousand, four hundred twenty-three".