1013506 has 16 divisors (see below), whose sum is σ = 1734264. Its totient is φ = 440064.

The previous prime is 1013503. The next prime is 1013527. The reversal of 1013506 is 6053101.

It can be written as a sum of positive squares in 4 ways, for example, as 737881 + 275625 = 859^2 + 525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1013506.

It is not an unprimeable number, because it can be changed into a prime (1013501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705 + ... + 1588.

2^1013506 is an apocalyptic number.

1013506 is a deficient number, since it is larger than the sum of its proper divisors (720758).

1013506 is a wasteful number, since it uses less digits than its factorization.

1013506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1013506 is about 1006.7303511865. The cubic root of 1013506 is about 100.4481882718.

Adding to 1013506 its reverse (6053101), we get a palindrome (7066607).

It can be divided in two parts, 1013 and 506, that multiplied together give a triangular number (512578 = T₁₀₁₂).

The spelling of 1013506 in words is "one million, thirteen thousand, five hundred six".