1329001 has 8 divisors (see below), whose sum is σ = 1405184. Its totient is φ = 1254960.

The previous prime is 1328981. The next prime is 1329011. The reversal of 1329001 is 1009231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1329001 - 2⁵ = 1328969 is a prime.

It is a Duffinian number.

1329001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1329011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835 + ... + 1831.

It is an arithmetic number, because the mean of its divisors is an integer number (175648).

2^1329001 is an apocalyptic number.

It is an amenable number.

1329001 is a deficient number, since it is larger than the sum of its proper divisors (76183).

1329001 is an equidigital number, since it uses as much as digits as its factorization.

1329001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1329001 is about 1152.8230566744. The cubic root of 1329001 is about 109.9449035375.

The spelling of 1329001 in words is "one million, three hundred twenty-nine thousand, one".