1513806 has 48 divisors (see below), whose sum is σ = 3720960. Its totient is φ = 408240.

The previous prime is 1513777. The next prime is 1513807. The reversal of 1513806 is 6083151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513807) 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 23 ways as a sum of consecutive naturals, for example, 5451 + ... + 5721.

It is an arithmetic number, because the mean of its divisors is an integer number (77520).

2^1513806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1513806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860480).

1513806 is an abundant number, since it is smaller than the sum of its proper divisors (2207154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1513806 is a wasteful number, since it uses less digits than its factorization.

1513806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1513806 is about 1230.3682375614. The cubic root of 1513806 is about 114.8215505844.

Adding to 1513806 its reverse (6083151), we get a palindrome (7596957).

The spelling of 1513806 in words is "one million, five hundred thirteen thousand, eight hundred six".