1310881 has 16 divisors (see below), whose sum is σ = 1572480. Its totient is φ = 1077120.

The previous prime is 1310851. The next prime is 1310891. The reversal of 1310881 is 1880131.

It is not a de Polignac number, because 1310881 - 2⁹ = 1310369 is a prime.

It is a super-2 number, since 2×1310881² = 3436817992322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1310801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12676 + ... + 12778.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2^1310881 is an apocalyptic number.

1310881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1310881 is a deficient number, since it is larger than the sum of its proper divisors (261599).

1310881 is a wasteful number, since it uses less digits than its factorization.

1310881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 1310881 is about 1144.9371161771. The cubic root of 1310881 is about 109.4429412979.

The spelling of 1310881 in words is "one million, three hundred ten thousand, eight hundred eighty-one".