1606281 has 16 divisors (see below), whose sum is σ = 2280000. Its totient is φ = 1003968.

The previous prime is 1606277. The next prime is 1606289. The reversal of 1606281 is 1826061.

It is not a de Polignac number, because 1606281 - 2² = 1606277 is a prime.

It is a super-2 number, since 2×1606281² = 5160277301922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1606289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2970 + ... + 3468.

It is an arithmetic number, because the mean of its divisors is an integer number (142500).

2^1606281 is an apocalyptic number.

It is an amenable number.

1606281 is a deficient number, since it is larger than the sum of its proper divisors (673719).

1606281 is a wasteful number, since it uses less digits than its factorization.

1606281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1606281 is about 1267.3914154672. The cubic root of 1606281 is about 117.1135576563.

It can be divided in two parts, 160 and 6281, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 1606281 in words is "one million, six hundred six thousand, two hundred eighty-one".