1331055 has 24 divisors (see below), whose sum is σ = 2517840. Its totient is φ = 645120.

The previous prime is 1331051. The next prime is 1331059. The reversal of 1331055 is 5501331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1331051) and next prime (1331059).

It is not a de Polignac number, because 1331055 - 2² = 1331051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331051) 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 23 ways as a sum of consecutive naturals, for example, 850 + ... + 1839.

It is an arithmetic number, because the mean of its divisors is an integer number (104910).

2^1331055 is an apocalyptic number.

1331055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1331055 is a deficient number, since it is larger than the sum of its proper divisors (1186785).

1331055 is a wasteful number, since it uses less digits than its factorization.

1331055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711 (or 2708 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 1331055 is about 1153.7135693057. The cubic root of 1331055 is about 110.0015151306.

Adding to 1331055 its reverse (5501331), we get a palindrome (6832386).

The spelling of 1331055 in words is "one million, three hundred thirty-one thousand, fifty-five".