1010403 has 12 divisors (see below), whose sum is σ = 1472328. Its totient is φ = 667680.

The previous prime is 1010381. The next prime is 1010407. The reversal of 1010403 is 3040101.

It is not a de Polignac number, because 1010403 - 2¹² = 1006307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

1010403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1010407) 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 11 ways as a sum of consecutive naturals, for example, 751 + ... + 1607.

It is an arithmetic number, because the mean of its divisors is an integer number (122694).

2^1010403 is an apocalyptic number.

1010403 is a deficient number, since it is larger than the sum of its proper divisors (461925).

1010403 is a wasteful number, since it uses less digits than its factorization.

1010403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1010403 is about 1005.1880421095. The cubic root of 1010403 is about 100.3455710972.

Adding to 1010403 its reverse (3040101), we get a palindrome (4050504).

The spelling of 1010403 in words is "one million, ten thousand, four hundred three".