1329345 has 32 divisors (see below), whose sum is σ = 2428800. Its totient is φ = 689472.

The previous prime is 1329337. The next prime is 1329353. The reversal of 1329345 is 5439231.

It is an interprime number because it is at equal distance from previous prime (1329337) and next prime (1329353).

It is not a de Polignac number, because 1329345 - 2³ = 1329337 is a prime.

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

1329345 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5691 + ... + 5919.

It is an arithmetic number, because the mean of its divisors is an integer number (75900).

2^1329345 is an apocalyptic number.

1329345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1329345 is a deficient number, since it is larger than the sum of its proper divisors (1099455).

1329345 is a wasteful number, since it uses less digits than its factorization.

1329345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 280 counting only the distinct ones).

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

The square root of 1329345 is about 1152.9722459799. The cubic root of 1329345 is about 109.9543888036.

The spelling of 1329345 in words is "one million, three hundred twenty-nine thousand, three hundred forty-five".