1606106 has 4 divisors (see below), whose sum is σ = 2409162. Its totient is φ = 803052.

The previous prime is 1606097. The next prime is 1606117. The reversal of 1606106 is 6016061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6016061 = 619 ⋅9719.

It can be written as a sum of positive squares in only one way, i.e., 1585081 + 21025 = 1259^2 + 145^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401525 + ... + 401528.

2^1606106 is an apocalyptic number.

1606106 is a deficient number, since it is larger than the sum of its proper divisors (803056).

1606106 is an equidigital number, since it uses as much as digits as its factorization.

1606106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803055.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1606106 is about 1267.3223741416. The cubic root of 1606106 is about 117.1093044327.

It can be divided in two parts, 1606 and 106, that multiplied together give a triangular number (170236 = T₅₈₃).

The spelling of 1606106 in words is "one million, six hundred six thousand, one hundred six".