1323945 has 40 divisors (see below), whose sum is σ = 2718144. Its totient is φ = 603936.

The previous prime is 1323941. The next prime is 1323967. The reversal of 1323945 is 5493231.

It is not a de Polignac number, because 1323945 - 2² = 1323941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1323941) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2602 + ... + 3068.

2^1323945 is an apocalyptic number.

1323945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323945 is an abundant number, since it is smaller than the sum of its proper divisors (1394199).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323945 is an equidigital number, since it uses as much as digits as its factorization.

1323945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 482 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 1323945 is about 1150.6280893495. The cubic root of 1323945 is about 109.8053029778.

The spelling of 1323945 in words is "one million, three hundred twenty-three thousand, nine hundred forty-five".