1313331 has 8 divisors (see below), whose sum is σ = 1757904. Its totient is φ = 872160.

The previous prime is 1313329. The next prime is 1313339. The reversal of 1313331 is 1333131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313331 - 2¹ = 1313329 is a prime.

It is a super-2 number, since 2×1313331² = 3449676631122, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1313331.

It is not an unprimeable number, because it can be changed into a prime (1313339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 1641.

It is an arithmetic number, because the mean of its divisors is an integer number (219738).

2^1313331 is an apocalyptic number.

1313331 is a deficient number, since it is larger than the sum of its proper divisors (444573).

1313331 is a wasteful number, since it uses less digits than its factorization.

1313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701.

The product of its digits is 81, while the sum is 15.

The square root of 1313331 is about 1146.0065444839. The cubic root of 1313331 is about 109.5110807994.

Subtracting from 1313331 its sum of digits (15), we obtain a square (1313316 = 1146²).

Adding to 1313331 its reverse (1333131), we get a palindrome (2646462).

The spelling of 1313331 in words is "one million, three hundred thirteen thousand, three hundred thirty-one".