1313140 has 12 divisors (see below), whose sum is σ = 2757636. Its totient is φ = 525248.

The previous prime is 1313087. The next prime is 1313141. The reversal of 1313140 is 413131.

It can be written as a sum of positive squares in 2 ways, for example, as 1004004 + 309136 = 1002^2 + 556^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1313140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32809 + ... + 32848.

It is an arithmetic number, because the mean of its divisors is an integer number (229803).

2^1313140 is an apocalyptic number.

1313140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313140 is an abundant number, since it is smaller than the sum of its proper divisors (1444496).

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

1313140 is a wasteful number, since it uses less digits than its factorization.

1313140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65666 (or 65664 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1313140 is about 1145.9232085965. The cubic root of 1313140 is about 109.5057717467.

Adding to 1313140 its reverse (413131), we get a palindrome (1726271).

Subtracting from 1313140 its reverse (413131), we obtain a palindrome (900009).

It can be divided in two parts, 13 and 13140, that multiplied together give a triangular number (170820 = T₅₈₄).

The spelling of 1313140 in words is "one million, three hundred thirteen thousand, one hundred forty".