1313081 has 8 divisors (see below), whose sum is σ = 1637184. Its totient is φ = 1023120.

The previous prime is 1313069. The next prime is 1313083. The reversal of 1313081 is 1803131.

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

It is a de Polignac number, because none of the positive numbers 2^k-1313081 is a prime.

It is a super-2 number, since 2×1313081² = 3448363425122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313083) 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, 8450 + ... + 8603.

It is an arithmetic number, because the mean of its divisors is an integer number (204648).

2^1313081 is an apocalyptic number.

1313081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1313081 is a deficient number, since it is larger than the sum of its proper divisors (324103).

1313081 is a wasteful number, since it uses less digits than its factorization.

1313081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17071.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1313081 is about 1145.8974648720. The cubic root of 1313081 is about 109.5041316734.

The spelling of 1313081 in words is "one million, three hundred thirteen thousand, eighty-one".