1326281 has 12 divisors (see below), whose sum is σ = 1485876. Its totient is φ = 1182720.

The previous prime is 1326277. The next prime is 1326287. The reversal of 1326281 is 1826231.

It can be written as a sum of positive squares in 2 ways, for example, as 234256 + 1092025 = 484^2 + 1045^2 .

It is not a de Polignac number, because 1326281 - 2² = 1326277 is a prime.

It is a super-2 number, since 2×1326281² = 3518042581922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11681 + ... + 11793.

It is an arithmetic number, because the mean of its divisors is an integer number (123823).

2^1326281 is an apocalyptic number.

1326281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1326281 is a deficient number, since it is larger than the sum of its proper divisors (159595).

1326281 is a wasteful number, since it uses less digits than its factorization.

1326281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 221 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1326281 is about 1151.6427397418. The cubic root of 1326281 is about 109.8698460603.

The spelling of 1326281 in words is "one million, three hundred twenty-six thousand, two hundred eighty-one".