1081403 has 2 divisors, whose sum is σ = 1081404. Its totient is φ = 1081402.

The previous prime is 1081369. The next prime is 1081417. The reversal of 1081403 is 3041801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1081403 - 2¹⁴ = 1065019 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1081303) 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 as a sum of consecutive naturals, namely, 540701 + 540702.

It is an arithmetic number, because the mean of its divisors is an integer number (540702).

2^1081403 is an apocalyptic number.

1081403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081403 is an equidigital number, since it uses as much as digits as its factorization.

1081403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1081403 is about 1039.9052841485. The cubic root of 1081403 is about 102.6429652846.

The spelling of 1081403 in words is "one million, eighty-one thousand, four hundred three".