1656163 has 2 divisors, whose sum is σ = 1656164. Its totient is φ = 1656162.

The previous prime is 1656131. The next prime is 1656167. The reversal of 1656163 is 3616561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1656163 - 2⁵ = 1656131 is a prime.

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

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (1656167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828081 + 828082.

It is an arithmetic number, because the mean of its divisors is an integer number (828082).

2^1656163 is an apocalyptic number.

1656163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1656163 is an equidigital number, since it uses as much as digits as its factorization.

1656163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 1656163 is about 1286.9199664315. The cubic root of 1656163 is about 118.3135156038.

It can be divided in two parts, 165 and 6163, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 1656163 in words is "one million, six hundred fifty-six thousand, one hundred sixty-three".