1310530 has 32 divisors (see below), whose sum is σ = 2694384. Its totient is φ = 454656.

The previous prime is 1310527. The next prime is 1310537. The reversal of 1310530 is 350131.

It can be written as a sum of positive squares in 8 ways, for example, as 576081 + 734449 = 759^2 + 857^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1310530.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310537) 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 15 ways as a sum of consecutive naturals, for example, 1914 + ... + 2506.

2^1310530 is an apocalyptic number.

1310530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1310530 is an abundant number, since it is smaller than the sum of its proper divisors (1383854).

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

1310530 is a wasteful number, since it uses less digits than its factorization.

1310530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 1310530 is about 1144.7838223874. The cubic root of 1310530 is about 109.4331723202.

Adding to 1310530 its reverse (350131), we get a palindrome (1660661).

The spelling of 1310530 in words is "one million, three hundred ten thousand, five hundred thirty".