1606123 has 2 divisors, whose sum is σ = 1606124. Its totient is φ = 1606122.

The previous prime is 1606117. The next prime is 1606139. The reversal of 1606123 is 3216061.

It is a weak prime.

It is an emirp because it is prime and its reverse (3216061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1606123 - 2¹³ = 1597931 is a prime.

It is a super-2 number, since 2×1606123² = 5159262182258, which contains 22 as substring.

It is an Ulam number.

1606123 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1606123.

It is not a weakly prime, because it can be changed into another prime (1606153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803061 + 803062.

It is an arithmetic number, because the mean of its divisors is an integer number (803062).

2^1606123 is an apocalyptic number.

1606123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606123 is an equidigital number, since it uses as much as digits as its factorization.

1606123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1606123 is about 1267.3290811782. The cubic root of 1606123 is about 117.1097176165.

The spelling of 1606123 in words is "one million, six hundred six thousand, one hundred twenty-three".