1061209 has 4 divisors (see below), whose sum is σ = 1071616. Its totient is φ = 1050804.

The previous prime is 1061189. The next prime is 1061227. The reversal of 1061209 is 9021601.

It is a Cunningham number, because it is equal to 102³+1.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1061209 - 2¹¹ = 1059161 is a prime.

It is a super-2 number, since 2×1061209² = 2252329083362, which contains 22 as substring.

It is a Duffinian number.

1061209 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1061279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5049 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (267904).

2^1061209 is an apocalyptic number.

It is an amenable number.

1061209 is a deficient number, since it is larger than the sum of its proper divisors (10407).

1061209 is a wasteful number, since it uses less digits than its factorization.

1061209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1061209 is about 1030.1499890793. The cubic root of 1061209 is about 102.0000320389. Note that the first 4 decimals are identical.

The spelling of 1061209 in words is "one million, sixty-one thousand, two hundred nine".