1326045 has 32 divisors (see below), whose sum is σ = 2472192. Its totient is φ = 594432.

The previous prime is 1326041. The next prime is 1326047. The reversal of 1326045 is 5406231.

It is a happy number.

It is not a de Polignac number, because 1326045 - 2² = 1326041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

1326045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326041) 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 31 ways as a sum of consecutive naturals, for example, 7579 + ... + 7751.

It is an arithmetic number, because the mean of its divisors is an integer number (77256).

2^1326045 is an apocalyptic number.

1326045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1326045 is a deficient number, since it is larger than the sum of its proper divisors (1146147).

1326045 is a wasteful number, since it uses less digits than its factorization.

1326045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1326045 is about 1151.5402728520. The cubic root of 1326045 is about 109.8633288839.

The spelling of 1326045 in words is "one million, three hundred twenty-six thousand, forty-five".