1200609 has 16 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 784368.

The previous prime is 1200607. The next prime is 1200611. The reversal of 1200609 is 9060021.

It is an interprime number because it is at equal distance from previous prime (1200607) and next prime (1200611).

It is not a de Polignac number, because 1200609 - 2¹ = 1200607 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1200591 and 1200600.

It is not an unprimeable number, because it can be changed into a prime (1200607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^1200609 is an apocalyptic number.

It is an amenable number.

1200609 is a deficient number, since it is larger than the sum of its proper divisors (613791).

1200609 is an equidigital number, since it uses as much as digits as its factorization.

1200609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1200609 is about 1095.7230489499. The cubic root of 1200609 is about 106.2838305189.

The spelling of 1200609 in words is "one million, two hundred thousand, six hundred nine".