1352009 has 8 divisors (see below), whose sum is σ = 1460160. Its totient is φ = 1248016.

The previous prime is 1351997. The next prime is 1352069. The reversal of 1352009 is 9002531.

1352009 = T₁₃₁ + T₁₃₂ + ... + T₂₁₇.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1352009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352069) 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, 347 + ... + 1680.

It is an arithmetic number, because the mean of its divisors is an integer number (182520).

2^1352009 is an apocalyptic number.

It is an amenable number.

1352009 is a deficient number, since it is larger than the sum of its proper divisors (108151).

1352009 is a wasteful number, since it uses less digits than its factorization.

1352009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1352009 is about 1162.7592184111. The cubic root of 1352009 is about 110.5757416329.

The spelling of 1352009 in words is "one million, three hundred fifty-two thousand, nine".