1200106 has 4 divisors (see below), whose sum is σ = 1800162. Its totient is φ = 600052.

The previous prime is 1200083. The next prime is 1200109. The reversal of 1200106 is 6010021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1071225 + 128881 = 1035^2 + 359^2 .

It is a super-2 number, since 2×1200106² = 2880508822472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200092 and 1200101.

It is not an unprimeable number, because it can be changed into a prime (1200109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300025 + ... + 300028.

2^1200106 is an apocalyptic number.

1200106 is a deficient number, since it is larger than the sum of its proper divisors (600056).

1200106 is an equidigital number, since it uses as much as digits as its factorization.

1200106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600055.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1200106 is about 1095.4934961012. The cubic root of 1200106 is about 106.2689857653.

Adding to 1200106 its reverse (6010021), we get a palindrome (7210127).

The spelling of 1200106 in words is "one million, two hundred thousand, one hundred six".