1616163 has 4 divisors (see below), whose sum is σ = 2154888. Its totient is φ = 1077440.

The previous prime is 1616161. The next prime is 1616171. The reversal of 1616163 is 3616161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3616161 = 3 ⋅1205387.

It is a cyclic number.

It is not a de Polignac number, because 1616163 - 2¹ = 1616161 is a prime.

It is a super-2 number, since 2×1616163² = 5223965685138, which contains 22 as substring.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

1616163 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1616161) 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, 269358 + ... + 269363.

It is an arithmetic number, because the mean of its divisors is an integer number (538722).

2^1616163 is an apocalyptic number.

1616163 is a deficient number, since it is larger than the sum of its proper divisors (538725).

1616163 is an equidigital number, since it uses as much as digits as its factorization.

1616163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538724.

The product of its digits is 648, while the sum is 24.

The square root of 1616163 is about 1271.2839965956. The cubic root of 1616163 is about 117.3532315671.

The spelling of 1616163 in words is "one million, six hundred sixteen thousand, one hundred sixty-three".